Push-fit connectors for use with compressed air

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 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 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 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.

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.

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.

Experience a reliable connection solution for your compressed-air installation: our Quick-Release Coupling Female 1/2" external thread is the ideal choice when you want to connect air hoses quickly, tightly and professionally. Made from high-quality brass and precisely designed for the 1/2" external thread standard, this coupling part allows direct connection to common air tools and line systems – putting your efficiency front and centre.With this coupling you achieve a clean and secure transition between hose and device. The precise manufacturing ensures that air losses remain minimal and your system operates reliably. Especially in workshops, industrial or trade environments this coupling proves itself as a stable and durable companion for daily use.Rely on quality, simple installation and versatile usability: whether attaching to a compressor, hose reel or pneumatic tool – this female coupling fulfils its task reliably, saves time during installation and supports smooth operation.Customer benefits at a glance:Standard 1/2" external thread – compatible with many compressed-air systemsHigh-quality brass material – durable, robust and corrosion-resistantSecure quick-release coupling – reduces air leakage, ensures a tight connectionPerfect for workshop, trade and industry – highly versatileEasy installation – ready to use immediately, no extensive modification required

The John Guest Straight Connector 15 mm (PM0415E) provides a clean and reliable solution for connecting water filters, reverse osmosis systems, and other drinking water setups. Its high-quality push-fit design ensures quick, tool-free installation that’s both leak-free and durable – ideal for DIY enthusiasts and professionals alike.Crafted from food-grade engineering plastic, this connector offers excellent resistance to pressure and temperature. Designed specifically for potable water use, it’s perfect for water filters, RO systems, aquarium setups, and various fluid applications where purity and safety matter.Whether used as a spare part or to expand an existing system, the John Guest connector delivers a strong, dependable connection between 15 mm tubing, ensuring your water filtration setup remains efficient, clean, and leak-free.Key Benefits:Quick and easy installation without toolsLeak-proof performance with precision fitSuitable for water filters, RO systems, and potable water applicationsMade from durable, food-grade plasticReusable and long-lastingFully compatible with all John Guest 15 mm fittingsThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The John Guest Y-Connector 1/4" Tube OD is the perfect solution for safely and efficiently splitting water lines in water filters, reverse osmosis systems, or other drinking water applications. With the proven John Guest push-fit technology, installation is quick and secure – no tools required. The system can be expanded or modified at any time with minimal effort.Made from durable, food-grade materials, this Y-connector ensures long-lasting performance and maximum hygiene. It evenly distributes water flow to two lines while maintaining a tight, leak-free seal. Precision manufacturing by John Guest guarantees consistent water pressure, making it ideal for sensitive applications such as RO systems.Whether you are a DIY enthusiast or a professional installer, the PI2308S Y-Connector is a versatile component – perfect as a replacement part for existing water filters, in new reverse osmosis builds, or for custom water line setups. Its compact design saves space and ensures reliability in any installation.Customer Benefits at a Glance:Quick and easy tool-free installationSafe, food-grade materialFits 1/4" outer diameter tubingIdeal for RO systems, water filters, and cooling setupsDurable, reliable, and leak-proofPerfect for replacements or extensionsThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The John Guest Straight Reducer Connector 15 mm to 3/8" delivers reliable performance and outstanding build quality. Designed for secure and leak-free connections between different tube sizes, it ensures a steady water flow — perfect for water filters, reverse osmosis systems, and various liquid applications.Featuring the proven push-fit technology, this connector installs effortlessly without tools and can be easily released when needed. Its strong, food-grade construction guarantees durability, pressure resistance, and consistent functionality for both home and professional use.Whether replacing old fittings or upgrading a water filtration system, the NC2511 straight reducer connector provides lasting quality and efficiency. Keep your water system running smoothly and hygienically with this premium spare part.Customer Benefits:Secure connection between 15 mm and 3/8" tubingQuick, tool-free installation with push-fit designPerfect for water filters, RO systems, and drinking water setupsFood-grade, durable construction for long-term reliabilityEasy maintenance and reusable multiple timesThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.

The PI Series for imperial tubing is manufactured from gray acetal copolymer (POM) and features food grade nitrile O-rings.It was developed for food, drinking water applications, water treatment systems, etc.Propertiesfor drinking water applications and water treatment systemsacetal copolymer (POM)mountable without toolsquick, multiple release of the connection possiblevery good flow propertiesThe connectors are also ideal for air, non-flammable gases (e.g. N2 and CO2) and vacuum applications.