John Guest connections for VISION AQUA water filters

The John Guest aluminum air manifold ensures reliable and efficient compressed air distribution in workshops and industrial environments. Designed for compact air systems, it provides flexible connection options for multiple lines while maintaining a strong, leak-free seal. The solid aluminum body offers outstanding durability under constant air pressure.With the included PM011214E push-fit connector, installation takes just seconds without any tools. Perfect for expanding or reorganizing compressed air systems with minimal effort. This manifold embodies the trusted John Guest quality that professionals rely on.Key Benefits:Durable aluminum construction for long-lasting performanceFast, tool-free installation using PM011214ECorrosion-resistant and pressure-safeIdeal for workshop and pneumatic air distributionIncludes two sealing plugs for unused ports

The ASV7 angle valve adapter from John Guest is the ideal choice when you need to connect a 3/8" plastic tube to your water filter or reverse osmosis system. It is mounted directly onto the cold water angle valve under the sink, creating a stable and secure connection.Equipped with an integrated check valve, the adapter protects your water installation against backflow. The built-in shut-off valve allows for easy water supply interruption, making filter changes and maintenance particularly convenient. A practical and reliable spare part for various kitchen and water treatment applications.Thanks to robust brass connections and premium plastic components, the ASV7 guarantees long-lasting performance and a reliable seal. John Guest stands for quality you can trust in every installation.Benefits at a glance:Compatible with 3/8" plastic tubingCheck valve for backflow protectionShut-off valve for convenient maintenanceStrong brass and plastic constructionSuitable for filter systems and water installationsThe product range is not suitable for compressed air, explosive gases, petroleum, or other liquids or in heating systems or similar applications.

The ASV9 angle valve adapter from John Guest is the perfect solution for connecting water filters, reverse osmosis systems and other appliances directly to your cold water supply. With its precise 3/8" thread and 1/4" tube connection, it offers the standard size for most water filter systems, ensuring maximum compatibility.The built-in check valve reliably prevents backflow into the water line, while the integrated shut-off valve makes it easy to stop the water flow whenever maintenance or filter replacement is required. This ensures safety and convenience for your water filter or reverse osmosis system.Made from durable brass and high-quality plastic, the ASV9 provides a secure and long-lasting connection. With this John Guest spare part, you get proven quality and reliable performance for your water installation.Benefits at a glance:Standard 1/4" size for reverse osmosis systems and water filtersIntegrated check valve for safe operationConvenient shut-off valve for easy maintenanceHigh-quality materials for long-lasting useSuitable for coffee machines, water dispensers and water treatmentThe product range is not suitable for compressed air, explosive gases, petroleum, or other liquids or in heating systems or similar applications.

The 1/4" check valve from John Guest is the reliable solution for water filter systems and reverse osmosis units. With its standard size, it fits perfectly into most common systems and effectively prevents water from flowing back. This ensures that the quality of your filtered water remains protected at all times and extends the lifespan of your system.Made from high-quality materials, this John Guest spare part stands out with its durability and ease of use. Installation is quick and requires no special tools, so you can easily fit the check valve yourself. Especially in water filtration technology, quality and precision matter – and this valve delivers both.Whether for home use or professional applications, the 1/4" check valve supports the reliable operation of your reverse osmosis system. It ensures that water flows only in the intended direction and provides lasting protection for your components.Key Benefits: Standard 1/4" size – perfect for water filter systems and reverse osmosis unitsReliable protection against water backflowPremium John Guest quality for long-lasting performanceEasy installation without special toolsIncreases safety and efficiency of your systemThe product range is not suitable for use in the compressed air and vacuum sector.

The 3/8" check valve from John Guest provides dependable protection against backflow in larger water filter systems and reverse osmosis units. It has been designed for applications that require higher flow rates, ensuring consistent performance and safety even in demanding environments.Thanks to proven John Guest craftsmanship, this check valve is robust and highly durable. Installation is simple and can be completed in just a few steps, adding a vital component to your filtration system for smooth operation.If you’re looking to upgrade your reverse osmosis system or water filtration unit with a reliable John Guest spare part, the 3/8" check valve is an excellent choice. It safeguards your system and ensures a steady supply of high-quality water at all times.Key Benefits:3/8" size for higher flow capacityEffective protection against water backflowRobust construction in trusted John Guest qualityQuick and easy installationExtends the lifespan of your reverse osmosis and filtration systemsThe product range is not suitable for use in the compressed air and vacuum sector.

Experience maximum flexibility and reliability when installing your water filter system. This faucet connection adapter with aerator and wastewater return connects your faucet to a 1/4″ tube system. It is an excellent spare part or upgrade for water filters, reverse osmosis systems and replacement components. The connection uses an M22 female thread (IG) ensuring a smooth link between your faucet and your filtration unit.With a well-thought-out design you benefit from convenient handling: The built-in aerator (perlator) provides a steady, splash-free water flow — perfect for use with a 1/4″ hose equipped RO system or direct water filter. The integrated return line for wastewater ensures excess water is neatly redirected, increasing the efficiency of your RO unit and simplifying discharge.The adapter perfectly complements your filtration setup and is finished in a chrome-look design with durable build. Whether at home, in a camper van or on the move — connecting your water filter or RO system becomes effortless. This adapter is compatible with the following VISION AQUA water filters:VA-Basic – travel water filter kit, reverse osmosis water filterVA-Basic PLUS – mobile water filterVanLife – water filter for campers and motorhomesBenefits for you at a glance:Direct M22 female thread to 1/4″ tube – perfect for water filters & RO systemsBuilt-in aerator ensures comfortable, splash-free flowWastewater return line included – clean dischargePremium workmanship – durable and functionalCompatible with VA-Basic, VA-Basic PLUS and VanLife by VISION AQUA

The John Guest T-Reducer Connector PM3022AE combines outstanding quality with easy handling. It connects two 22 mm tubes to a 15 mm tube – perfect for water filter systems, reverse osmosis units and other drinking water applications. The quick-connect design allows a tool-free installation that is clean, secure and reliable.Made from durable, food-grade plastic, this T-fitting ensures a tight seal and long-lasting performance, even under regular use. It’s ideal for home water systems, laboratories and commercial setups where consistent water flow and pressure are essential.Whether used as a replacement part or in new installations, the John Guest T-Reducer offers effortless and professional results. Simply push the tubes in – no need for screws, clamps or soldering. Reliable, fast and built for long-term performance.Your Benefits at a Glance:Perfect for water filters and reverse osmosis systemsTool-free quick-connect fittingCompatible with 22 mm and 15 mm tubingManufactured by John Guest, a trusted brand in fluid connection technologyIdeal as a replacement part or for extending existing systemsFood-grade and safe for potable waterFast installation and high leak resistanceThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The high-quality John Guest 3/8" OD Angle Shut-Off Valve provides a reliable and convenient solution for safe water connections in kitchens and households. Perfect for water filters, reverse osmosis systems, coffee machines, and drinking water dispensers, it allows precise control of water flow and enables individual appliances to be shut off without interrupting the main water supply.Thanks to the John Guest push-fit connection, installation is quick, secure, and tool-free. The built-in non-return valve prevents backflow into the water network in compliance with DIN 1988 / EN 1717. Its durable construction ensures a long service life, making it suitable for both domestic and commercial use.Ideal for maintenance work, filter changes, or appliance replacement – one simple movement shuts off the water flow safely. This angle valve combines safety, reliability, and ease of use – an essential spare part for every professional water filtration setup.Key benefits:Fits 3/8" OD tubingPerfect for water filters, reverse osmosis systems, and coffee machinesIndependent shut-off without interrupting main water flowBuilt-in check valve prevents backflowEasy tool-free installation with John Guest push-fit technologyDurable and high-quality constructionCompliant with DIN 1988 / EN 1717

The John Guest adapter with 3/4“ female BSPP thread to 3/8“ tube connection is the right choice when larger systems with higher flow rates need to be connected. It provides a secure and precise link between the angle valve and your water treatment equipment.The adapter is mounted directly on the 3/4“ cold water inlet under the sink and enables the connection of reverse osmosis systems, professional water filters, coffee machines or water dispensers. In our water filter systems, it is used together with the Hydro Stopper, ensuring a reliable and tight installation at the angle valve.Thanks to the precise John Guest engineering, this adapter ensures a stable and long-lasting fit. For anyone seeking a trustworthy spare part for drinking water systems, this adapter combines safety, durability and easy handling in one.Customer Benefits at a Glance:3/8” connection for systems with higher water flowUse in combination with the Hydro Stopper at the angle valveSuitable for reverse osmosis, water filters, coffee machines and water dispensersPremium John Guest quality and durabilityLong-lasting, leak-proof connection for drinking water applications

The John Guest Shut-Off Valve PPSV501222W offers outstanding build quality and effortless handling. It is the perfect choice for use in water filtration systems, reverse osmosis units, and other potable water applications. With its convenient 3/8" tube OD to 1/4" female NPTF connection, installation takes only seconds – no tools required.Made from high-grade, food-safe plastic, this valve ensures a secure seal even with frequent use. The ergonomic blue lever handle allows precise flow control, making maintenance and service of downstream components quick and safe.Important Note: The John Guest shut-off valves are designed exclusively for water applications. They must not be used with compressed air, explosive gases, petroleum, or other liquids, nor in heating systems or similar environments. Use only in the fully open or fully closed position.Key Benefits:Premium quality by John GuestQuick, tool-free installationPerfect for RO systems and water filtersDurable and food-grade materialsReliable isolation of downstream componentsEasy operation with ergonomic handleSafe use in water systems onlyThe shut-off valves must not be used as follows:as flow control (only partially open)as a permanent pipe end (here we recommend using our end caps.)only connected on one sideas a tap or faucet

The John Guest adapter with 3/4“ female BSPP thread to 1/4“ tube connection is the perfect accessory to connect water filters and reverse osmosis systems safely to your cold water supply. Since 1/4" is the standard size for most drinking water filters, this adapter is the ideal choice for under-sink installations.The adapter is mounted directly on the 3/4" cold water supply at the angle valve and ensures a leak-proof connection for water filters, reverse osmosis systems, coffee machines or water dispensers. In our water filter systems, it is specifically used together with the Hydro Stopper, which is installed at the angle valve. This makes the installation quick, secure and highly reliable.With the proven John Guest quality, you benefit from a robust and durable fitting that perfectly integrates into your existing setup. Handling is simple, the connection is leak-free, and it is ideally suited for drinking water applications. An essential spare part for anyone who values safe and clean water.Customer Benefits at a Glance:Standard size 1/4” – perfect for reverse osmosis systems and water filtersDesigned for use with the Hydro Stopper at the angle valveCompatible with coffee machines, water dispensers and water treatment systemsDurable and reliable John Guest qualityQuick and easy installation without toolsThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The John Guest Shut-Off Valve PPSV040808W – 1/4" Tube OD delivers a reliable and durable solution for controlling water flow in water filters, reverse osmosis systems, and other drinking water applications. Its precision push-fit connection ensures a secure, leak-free installation every time – no tools required.The compact design and smooth-turn lever make it easy to quickly isolate or reconnect the water supply, perfect for maintenance tasks such as filter changes or cleaning procedures.The JG shut-off valves are designed specifically for temporary maintenance of downstream components or assemblies. They must only be operated in the positions “fully open” or “fully closed.” This valve is suitable for potable water only. Not for use with compressed air, explosive gases, petroleum, heating systems, or similar applications.Customer Benefits:Quick and easy push-fit installationLeak-proof design without the need for toolsPerfect for reverse osmosis systems and water filtersDurable John Guest quality constructionSimple maintenance and operationDesigned for temporary maintenance useThe shut-off valves must not be used as follows:as flow control (only partially open)as a permanent pipe end (here we recommend using our end caps.)only connected on one sideas a tap or faucet

The John Guest shut-off valve PPSV041212W with a 3/8" tube connection offers outstanding quality and easy operation. Perfect for water filters, reverse osmosis systems and drinking water installations, this valve ensures reliable control of water flow. The ergonomic lever allows smooth handling and provides a secure seal when closed.Made from durable, food-grade plastic, this valve guarantees a long service life even with frequent use. The push-fit connections enable quick, tool-free installation, making it ideal for maintenance, replacement, or system upgrades. Professionals and DIY enthusiasts alike appreciate its dependability and ease of use.Important note: These shut-off valves are not suitable for compressed air, explosive gases, petroleum or other liquids, and must not be used in heating systems or similar applications.John Guest shut-off valves are designed for temporary maintenance of downstream components or assemblies. They must be used only in the positions “fully open” or “fully closed.”Key Benefits:Suitable for 3/8" tube connectionsPerfect for water filters, reverse osmosis and drinking water systemsQuick, tool-free installation with push-fit technologyStrong, food-grade plastic constructionDurable and reliable performanceDesigned only for fully open or fully closed operationThe shut-off valves must not be used as follows:as flow control (only partially open)as a permanent pipe end (here we recommend using our end caps.)only connected on one sideas a tap or faucet

The John Guest shut-off valve delivers reliability and precision for controlling water flow in filtration systems, reverse osmosis units, and other water treatment setups. Its push-fit connection system ensures fast, secure installation without tools, saving time and effort during setup or maintenance.Built from durable, high-quality plastic with a smooth-turning blue lever handle, this valve provides long-lasting performance and leak-free operation. Ideal for use in drinking water applications, water filters, and coolers where dependable shut-off functionality is essential.Important note: These shut-off valves are not suitable for compressed air, explosive gases, petroleum, or any other liquids, nor for use in heating systems or similar applications.John Guest valves are designed to allow temporary maintenance of downstream components or assemblies and must only be used in fully open or fully closed positions.Key Benefits:Quick and secure push-fit connectionIdeal for reverse osmosis systems and water filtersDurable, corrosion-resistant body for long lifeSmooth, reliable operation with easy lever controlDesigned for easy maintenance and consistent performanceThe shut-off valves must not be used as follows:as flow control (only partially open)as a permanent pipe end (here we recommend using our end caps.)only connected on one sideas a tap or faucet

The John Guest T-Connector with 15 mm outer diameter provides a secure and long-lasting connection for water filtration systems, reverse osmosis setups, and other applications involving drinking water. Its reliable push-fit design ensures a tight seal without the need for tools or sealing materials. Simply insert the tubing and enjoy a solid, pressure-resistant connection.This connector is perfect for branching water lines in three directions, whether you are installing a reverse osmosis system or expanding an existing water filter setup. The durable plastic body offers excellent resistance to pressure, temperature, and chemicals, ensuring a long service life and consistent performance.With its precise fit and trusted John Guest quality, the T-Connector guarantees maximum safety and efficiency. Suitable for professional installations as well as home projects, it delivers reliability, comfort, and convenience to any water filtration system.Key Benefits:Easy push-fit connection – no tools neededSuitable for water filters, RO systems, and beverage equipmentDurable and high-quality plastic constructionSecure and leak-free connectionPerfect for 15 mm tubing branchesFood-grade and NSF certifiedThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The John Guest Push-Fit Connector 15 mm x 3/4" Male Thread (Part No. PM011516E) provides a dependable and durable solution for connecting tubing in water filters, reverse osmosis systems, and filtration equipment. Designed for precision and safety, it ensures a tight and reliable seal that supports long-lasting performance in both residential and commercial applications.Made from high-quality acetal material, this fitting delivers excellent resistance to pressure and temperature changes. It fits perfectly into home water filters, drinking water systems, and professional filtration setups. The quick-connect design allows for easy installation and removal without the need for tools, making maintenance and system upgrades straightforward and efficient.With this original John Guest fitting, users benefit from proven quality and reliability. The precisely machined threads and smooth push-fit connection ensure a leak-free performance, even under demanding conditions. It’s the perfect choice for anyone who wants to maintain or expand their water purification system with trusted components.Key Benefits:Connects 15 mm OD tubing to 3/4" female thread (BSPF)Fast, tool-free installationLeak-proof and long-lasting performanceFood-grade and safe for drinking water systemsIdeal for water filters, reverse osmosis units, and spare partsGenuine John Guest qualityThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The John Guest elbow connector for 15 mm outside diameter tubing is the perfect solution for secure and easy connections in water applications. Its push-fit technology allows effortless installation without special tools while ensuring a leak-proof and reliable seal.Thanks to its 90° angle design, tubing can be routed neatly even in limited space. This makes the connector not only ideal for reverse osmosis and water filtration systems but also for other applications where durable and precise connections are required.With this original John Guest spare part, you benefit from a product known worldwide for its outstanding quality. Strong, reliable, and designed for everyday use, this elbow connector ensures your system stays safe and efficient.Customer Benefits at a Glance:Fits 15 mm outside diameter tubingEasy push-fit installation without toolsSecure and reusable connectionPerfect for water filters, RO systems and moreGenuine John Guest spare part with superior qualityThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

Transform your faucet into a compatible interface for your filtration or reverse osmosis system in no time. This high-quality adapter allows conversion from a male thread size M24 (external) to M22 (external), making it the perfect solution for anyone retrofitting a water filter, RO system or needing replacement parts. Made from durable brass with a chrome-plated finish, it guarantees long-lasting performance with effortless handling. According to manufacturer specifications, dimensions are approx. 21.5 × 23.5 mm, weighing about 16 g including a food-safe EPDM seal.Thanks to this adapter you can connect standard water filters and RO systems without complex modifications. Whether it’s a countertop water filter, under-sink RO installation or a component replacement – this adapter provides a secure connection, reducing the risk of leaks. The chrome finish also adds corrosion resistance and ensures a clean look in your kitchen or utility area.With this adapter you invest in a hassle-free upgrade of your water setup: you gain compatibility, keep flexibility and stay ready for modern filter and RO technologies.Benefits at a glance:Compatibility M24 – M22: suitable connection for many water filters and reverse osmosis unitsPremium brass with chrome finish: durable, corrosion-resistantFood-safe EPDM seal included: secure sealing without additional partsPerfect as a replacement part or retrofit kit for filter and RO systemsEasy installation: screws directly onto existing faucetFlexible connection solution: avoids needing to replace the faucetProperties: Material: brass Weight: 16g Overall Size: 21.5 x 23.5mm / 0.85" x 0.93" (H*D) Finish: Electroplated finish External thread diameter: M24 to M22 incl. food-safe EPDM seal 

The John Guest Bulkhead Connector 3/8" is the perfect choice for installations requiring larger tubing to pass securely through housings or panels. With its threaded body and supplied lock nut, the connector can be tightly fastened, ensuring a stable and durable bulkhead fitting even in systems with higher flow rates.Installation is fast and straightforward thanks to John Guest’s push-fit technology. Simply insert the tube and the connection locks firmly in place, creating a reliable, leak-free seal. This makes the 3/8" bulkhead connector particularly well-suited for reverse osmosis and water filter systems with greater capacity.Constructed from food-grade plastic and equipped with a strong fixing nut, this connector provides long-lasting, hygienic performance for professional water treatment setups.Key Benefits:3/8" size for higher flow applicationsSecure bulkhead fitting through housings and panelsLocking nut provides strong and stable fixationQuick-Connect system for hassle-free installationFood-grade material for safe drinking water applicationsThe product range is not suitable for compressed air, explosive gases, petroleum or other liquids as well as in heating systems or similar areas of application.

The John Guest bulkhead reducer connector delivers precision, reliability, and long-lasting performance. Designed to securely connect two tube systems with different outer diameters – 12 mm and 3/8" – it ensures a leak-free connection in water filtration systems, reverse osmosis units, and beverage equipment.Its durable plastic construction resists pressure, moisture, and temperature variations. Thanks to the quick connect system, installation takes only seconds with no tools required. Perfect for panel or housing installations, this connector guarantees a firm and secure fit.This reducer connector offers maximum flexibility for a wide range of water applications. It provides a dependable solution for water treatment, aquariums, and filter systems while maintaining consistent water flow even during component replacements or cleaning.Customer Benefits at a Glance:Compatible with 12 mm and 3/8" OD tubingStrong, pressure-resistant plastic constructionQuick and tool-free installationIdeal for reverse osmosis units, water filters, and beverage dispensersPerfect for panel mounting applicationsHygienic, low-maintenance, and durableThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The John Guest Female Adaptor PI451213S is a premium connector designed for 3/8" tube (OD) to 3/8" BSP female thread. It offers a reliable, precise fit and an effortless installation experience – perfect for water filters, reverse osmosis systems, and other beverage or water treatment setups.Made from durable, food-grade plastic, this fitting ensures a leak-free and secure connection, even under continuous use. The John Guest push-fit technology allows quick assembly without tools, making it the ideal choice for both professional installers and DIY enthusiasts.Whether used as a replacement part or for new system installations, this adaptor combines durability, safety, and outstanding performance for all types of water filtration systems.Key Benefits:Quick and secure connection without toolsCompatible with 3/8" OD tube and 3/8" female threadPerfect for water filters, RO systems, and beverage setupsGenuine John Guest quality – long-lasting and reliableMade from food-grade, hygienic materialsMaintenance-free and reusableThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The PM series for metric tube dimensions is made from black acetal copolymer (POM) plastic and is equipped with food-safe nitrile O-rings.The product range can be used in particular for liquid media, air and inert gases and is therefore also suitable for N2 and CO2. The PM series products are also suitable for pneumatic and vacuum applications in a wide variety of industrial sectors.Properties:     simple and quick installation "right first time"     ideal for compressed air and liquids     mountable without tools     fast, multiple disconnection possible     very good flow propertiesThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

Upgrade your filtration system with this high-quality M24 male to M22 male faucet adapter — perfect for connecting your filter or reverse osmosis unit with ease. It ensures a secure, leak-free interface between your tap and your water filter system, making it an essential replacement part for water purification setups.Whether you’re retrofitting your kitchen or maintaining an existing system, this adapter delivers reliable performance. Crafted from durable brass with an electro-polished finish, it resists corrosion and stands up to continuous use. The included food-safe EPDM seal guarantees secure installation and clean water flow.Trust in a solution that streamlines your setup and keeps your water treatment system running at its best. Be it an upgrade or a replacement part — this adapter delivers both quality and peace of mind.Benefits at a glance:Perfect fit: M24 male thread to M22 male thread — ideal for water filters, RO systems and replacement partsDurable brass construction with polish finish — built to lastIncludes food-safe EPDM seal — secure and leak-free connectionCompact, easy to install — fits seamlessly into your systemExcellent upgrade or spare part for filter systemsProperties: Material: brass Weight: 12g Overall Size: 12.5 x 23.5mm / 0.49" x 0.93" (H*D) Finish: Electroplated finish External thread diameter: M24 to M22 incl. food-safe EPDM seal 

The PM series for metric tube dimensions is made from black acetal copolymer (POM) plastic and is equipped with food-safe nitrile O-rings.The product range can be used in particular for liquid media, air and inert gases and is therefore also suitable for N2 and CO2. The PM series products are also suitable for pneumatic and vacuum applications in a wide variety of industrial sectors.Properties:     simple and quick installation "right first time"     ideal for compressed air and liquids     mountable without tools     fast, multiple disconnection possible     very good flow propertiesThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

Give your water treatment system the reliable connection it deserves: this 3/8" male threaded elbow connector with 3/8" tube fitting and sealing ring is designed for the 500 GPD membrane housing (Art.-No. 6000011) and ideally suited for drinking water applications and reverse osmosis systems. With its tool-free installation you can quickly install it and begin using your filter system immediately.The clever angle design allows you to save space and achieve a neat installation – whether under the sink, inside the filtration cabinet or at your module mounting point. With this connector in your water filter system you ensure clean pipe routing, secure connections and long-term reliability.Key Benefits at a glance:Tool-free, quick installation3/8" male thread to 3/8" tube connection with sealOptimised for drinking water and water-filtration systems (e.g. RO systems)Designed for repeated disconnecting and reconnectingFully compatible with the 500 GPD membrane housing (Art.-No. 6000011)Space-saving elbow shape for tidy pipe layoutDurable materials for long service life in your filtration system