Push-in connectors for water filters

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties:     for drinking water applications and water treatment systems     Polypropylene (PP)     mountable without tools     fast, repeated disconnection possible     very good flow propertiesThe 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 Connector 1/4" is designed for secure and leak-free tubing installations through panels or housings. Featuring a threaded body and a durable locking nut, the connector can be firmly fixed in place, providing a stable bulkhead fitting. This makes it ideal for use in water filter systems, reverse osmosis units and other water treatment setups.The 1/4" size is the industry standard for most water filtration systems, making this connector the perfect choice as a spare part or when building a new installation. Thanks to John Guest’s Quick-Connect technology, connecting tubing is effortless: simply push the tube into the fitting for a reliable and watertight connection.Made from food-grade plastic and reinforced with a sturdy lock nut, the connector ensures both long-term hygiene and durability. It allows professional, stable and efficient construction of water filtration systems without the hassle of complicated assembly.Key Benefits:Standard 1/4" size for most water filters and RO systemsSecure bulkhead fitting through panels or housingsLocking nut provides stable fixationQuick-Connect system for leak-free connectionsFood-grade material ensures safe water useThe 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 Push-Fit Connector 1/4" Tube OD to 1/4" Female NPTF USA offers exceptional reliability and precision. Designed for use in water filters, reverse osmosis systems, and beverage dispensers, this connector ensures a secure and leak-free connection while maintaining high water quality standards. Made from durable, food-grade materials, it guarantees long-lasting performance even under continuous use.Installation is quick and effortless thanks to the push-fit technology. Simply insert the tube, and the connection locks firmly into place without the need for any tools. This makes it the perfect choice for users who value efficiency, cleanliness, and durability in their water purification systems.Manufactured by John Guest, a trusted name in fluid control fittings, this connector stands for top-tier quality and user-friendly design. Its compatibility with 1/4" tubing and 1/4" threads makes it versatile and easy to integrate into new or existing systems.Key Benefits:Secure, leak-free connection for water filters and RO systemsQuick tool-free installationFood-grade, durable plasticHygienic, corrosion-resistant, and long-lastingIdeal for drinking water, filtration, and cooling 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 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 T-Reducer Fitting PP30121208W is a reliable and high-quality solution for clean and secure connections in water filter systems, reverse osmosis units, and drinking water installations. With two 3/8" tube ports and one 1/4" outlet, it allows smooth diameter reduction between different tubing sizes – ideal for flexible system configurations.Made from durable, food-grade plastic, this fitting ensures maximum hygiene and long service life. Thanks to the trusted John Guest push-fit technology, installation takes just seconds and requires no tools. Simply push in the tubing for a tight, leak-free connection that can be easily released when needed.Whether you’re setting up a reverse osmosis system, a water filter, or any other drinking water setup, the PP30121208W guarantees secure flow and dependable performance. Its precision and build quality make it an essential spare part for anyone who values reliability and cleanliness in water systems.Your Benefits at a Glance:Fits 2 x 3/8" OD tubes to 1/4" OD tubeQuick and tool-free installationFood-grade, durable constructionLeak-free and secure connectionIdeal for reverse osmosis and water filter systemsReusable and easy to disconnectThe 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 T Connector 1/4" Tube OD stands for premium quality and effortless installation. Designed for use in water filters, reverse osmosis systems, and various drinking water applications, this fitting ensures a quick, clean, and secure connection every time.Made from durable, food-grade plastic, this connector provides a tight and long-lasting seal between three 1/4" tubes. It’s ideal for reverse osmosis systems, water dispensers, aquarium filters, and cooling units. The precision-engineered design minimizes leakage and guarantees consistent performance.With the John Guest CI0208W, you gain a reliable, professional-grade fitting that delivers outstanding results in water filtration and plumbing projects. Perfect for installers, technicians, and DIY enthusiasts alike.Customer Benefits at a Glance:Quick and secure connection with push-fit technologyCompatible with 1/4" outer diameter tubingFood-grade, durable plastic constructionIdeal for water filters, RO systems, and cooling equipmentReusable and easy to maintainLeak-resistant and long-lasting performanceThe product series is not suitable for use in compressed air and vacuum areas.

The John Guest Tap Connector PP3212U7W provides a secure and precise connection between 3/8" tubing and a 7/16"-24 UNS female thread. This thread type is compatible with standard 7/16"-24 UNF male fittings, commonly found in water filters, reverse osmosis systems, CO₂ setups, and beverage equipment. It fits perfectly with matching UNF or UNS male threads used on faucet adapters, filter heads, or quick-connect fittings.With its trusted push-fit technology, installation takes just seconds – simply push the tubing in and enjoy a tight, leak-free seal. Made from high-quality, food-grade acetal, this connector ensures hygiene, durability, and long-lasting reliability for all drinking water applications.Whether used for maintenance or new installations, this John Guest connector delivers top-tier performance and ease of use. Precision engineering ensures a strong, reusable connection and consistent water flow – ideal for anyone who values clean, safe, and efficient water systems.Key Benefits:Fits 3/8" tubing and 7/16"-24 UNS female thread (compatible with UNF male fittings)Quick and secure push-fit installation, no tools neededFood-grade, durable plastic for hygienic and leak-free operationReusable, long-lasting, and maintenance-friendlyThe 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 Y-Connector PP241208W delivers outstanding quality and reliability for any installation setup. It connects two 1/4" tubes to one 3/8" line effortlessly – perfect for water filters, reverse osmosis systems, and beverage dispensers. The precise push-fit technology allows for quick, tool-free installation, ensuring a leak-free and durable connection every time.Made from high-grade, food-safe materials, this connector is designed to meet the highest standards for drinking water applications. Its robust construction ensures lasting performance and reliability, even under changing pressure conditions. A perfect choice for those who value quality, hygiene, and convenience.Whether you're expanding your filtration system, replacing old parts, or creating a new setup, this Y-Connector provides flexibility and efficiency with minimal effort.Key Benefits:Quick, tool-free installation with push-fit technologyCompatible with water filters, reverse osmosis systems, and beverage dispensersDurable, food-grade plastic constructionReliable, leak-free performance for drinking water systemsPerfect for system upgrades, extensions, or repairsThe 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 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 John Guest Straight Connector 3/8" (PP0412W) provides a reliable and durable connection for a wide range of water filtration and reverse osmosis systems. Its user-friendly push-fit design ensures a secure and leak-free joint between two 3/8" OD tubes – no tools required.Engineered for quick installation and easy maintenance, this connector delivers consistent water flow and quality in residential, commercial, or laboratory settings. Made from high-grade, food-safe plastic, it’s perfectly suited for drinking water systems where hygiene and reliability are essential.John Guest stands for top performance and precision. This fitting resists pressure, temperature variations, and corrosion. Ideal as a replacement part or for expanding existing water filtration setups. A trusted component used globally in professional water treatment.Key Benefits:Compatible with 3/8" OD tubingEasy push-fit installation – no tools neededMade from durable, food-grade materialPerfect for water filters, RO systems, and drinking water applicationsReusable and easy to cleanReliable, watertight connectionThe 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 Tap Connector CI320816FS combines premium quality with effortless installation. It’s the perfect choice for connecting water filters, reverse osmosis systems, and other drinking water applications. The precisely machined fittings ensure a secure, leak-free connection between a 1/4" tube (outer diameter) and a 3/4" female thread. Quick to install and highly reliable – no special tools required.Made from durable, food-grade plastic, this connector is approved for use with drinking water and built to last. It provides excellent resistance to pressure and temperature changes, making it a dependable part of RO systems or water dispensers. Its robust design maintains hygienic water flow and minimizes any risk of leakage.Whether for home, hospitality, or laboratory setups, this tap connector is a smart replacement part that delivers both safety and quality. With the trusted John Guest push-fit system, installation takes only seconds, while the connection remains secure yet easily removable if needed.Customer Benefits at a Glance:Perfect for water filters, RO systems, and drinking water setupsDurable, food-grade materialQuick and tool-free installationReliable and leak-proof John Guest connectionExcellent as a replacement or system extensionThe product series is not suitable for use in compressed air and vacuum areas.

The John Guest PP011223W male connector provides a secure and reliable connection between a 3/8" tube (OD) and a 3/8" internal thread. Designed for use in water filters, reverse osmosis systems, and beverage equipment, this fitting ensures a tight and leak-free seal. The push-fit technology allows for quick, tool-free installation – simply insert the tube for a firm and watertight connection.Made from durable, food-grade polypropylene, this connector offers excellent resistance to pressure, temperature, and corrosion. It’s ideal for applications where hygiene and water purity are critical. Thanks to its precision design, the PP011223W maintains a consistent seal, even with frequent use or system adjustments.Perfect for expanding or maintaining RO systems, water filtration setups, or beverage dispensers, this John Guest fitting serves as a dependable spare part or component for custom installations.Key Benefits:Quick, tool-free push-fit connectionConnects 3/8" tube to 3/8" female threadFood-grade, durable polypropylene constructionIdeal for water filters, RO systems, and beverage equipmentResistant to pressure and temperatureHygienic, long-lasting, and easy to cleanThe 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 Tap Connector PP3208U7W is the ideal solution for a secure and quick connection in water filters, reverse osmosis systems, and beverage equipment. Its precise fit and trusted John Guest quality ensure a leak-proof connection without the need for additional tools. The smart push-fit design allows for effortless installation and easy maintenance.Made from durable, food-grade plastic, this connector guarantees long-lasting performance and hygienic safety. It’s designed for drinking water applications and provides a reliable seal between a 1/4" outer diameter tube and a 7/16"-24 UNS female thread.Whether used as a replacement part or for building a new water filtration system, this connector offers top performance and compatibility with a wide range of systems. Choose professional-grade quality that makes a difference – choose John Guest.Customer Benefits at a Glance:Quick and easy installation with push-fit technologyCompatible with water filters, RO systems, and cooling unitsMade from food-grade, durable materialsLeak-proof and secure even after repeated usePerfect for repairs or system extensionsThe 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 PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties:     for drinking water applications and water treatment systems     Polypropylene (PP)     mountable without tools     fast, repeated disconnection possible     very good flow propertiesThe 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 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.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties:     for drinking water applications and water treatment systems     Polypropylene (PP)     mountable without tools     fast, repeated disconnection possible     very good flow propertiesThe 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 CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties:     for drinking water applications and water treatment systems     Polypropylene (PP)     mountable without tools     fast, repeated disconnection possible     very good flow propertiesThe 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 PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties:     for drinking water applications and water treatment systems     Polypropylene (PP)     mountable without tools     fast, repeated disconnection possible     very good flow propertiesThe 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 push-fit elbow connector in 1/4" is the preferred choice for connecting water filter systems and reverse osmosis units. As the standard size in most filtration setups, it ensures a perfect fit and an effortless installation. No tools are required, making it quick and convenient to use.Thanks to the trusted push-fit technology by John Guest, the connector provides a secure and leak-proof connection. It keeps water lines sealed even under higher pressure, making it ideal not only for water filters but also for various applications where clean water is essential.Manufactured from food-grade, durable materials, this connector is designed to last and maintain hygienic conditions. As a genuine John Guest spare part, it delivers the quality and reliability you need for your water system. Perfect for anyone who values safety, simplicity and long-term performance.Key Benefits:Compatible with standard 1/4" water filters and RO systemsQuick and tool-free installationFood-grade and durable materialGenuine John Guest qualityLeak-proof even under higher pressureThe product series is not suitable for use in compressed air and vacuum areas.

The PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties:     for drinking water applications and water treatment systems     Polypropylene (PP)     mountable without tools     fast, repeated disconnection possible     very good flow propertiesThe 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 PP series for imperial tube dimensions is made from white polypropylen (PP) plastic and is equipped with food-safe EPDM O-rings.The product range was developed for drinking water applications, water treatment systems etc.Properties:     for drinking water applications and water treatment systems     Polypropylene (PP)     mountable without tools     fast, repeated disconnection possible     very good flow propertiesThe 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 CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

The CI range is manufactured from white acetal copolymer (POM) and fitted with food grade EPDM O-rings. They are used specifically in water treatment, drinking water and beverage applications. They are also suitable for other liquids and are recommended in the given technical specification for alternating cold and hot water applications.Properties:simple and quick installation "right first time"ideal for compressed air and liquidsmountable without toolsfast, multiple disconnection possiblevery good flow propertiesThe product series is not suitable for use in compressed air and vacuum areas.

Suitable for use with water and food: Products are made of safe, non-toxic materials. Meets the requirements of FDA, WRAS, ANSI/NSF-51, 61, ACS, KTW and DVGW-W270. Our products are widely used in water treatment, the food/beverage industry and pneumatic systems. Function and Quality: Enables quick and convenient installation - saving time and cost. Our ISO9001, 14001 registered quality system ensures our customers receive the highest level of product quality. Maintenance is fast, thanks to easy disassembly. Applications:Beyond water and food applications, our products can be used with air, gases, vacuum and liquids. All connections can be assembled and disassembled multiple times. A wide range of sizes covers a wide range of applications. Material:Grey acetal copolymer