Water Treatment
Fittings & Solutions

A collage of families using John Guest water treatment fitings.

Browse our selection of plastic push-to-connect fittings, shut-off valves and LLDPE tubing designed for a wide range of residential, commercial and industrial water quality applications.

A collage of families using John Guest water treatment fitings.

Water Treatment Fittings
For Quick Installations

Whether installing water treatment systems or providing solutions for OEM suppliers, John Guest water treatment fittings allow for quick, secure and leak-free connections every time.

John Guest fittings are made with non-toxic, food-grade materials, so they’re suitable for a wide range of residential and commercial water treatment applications. The push-to-connect design cuts down on install time and can be used with plastic and copper tubing to create a fast, secure seal while maintaining full flow.

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Water Filtration Fittings & Reverse Osmosis Systems

John Guest’s polypropylene fittings, polypropylene stop valves and LLDPE tubing are specifically designed for water filtration and reverse osmosis systems. Trusted by OEMs for their systems, the fittings, valves and tubing are also used to install these kinds of systems.

Water Dispensing & Ice Maker Kits

Connecting a refrigerator ice maker or water dispenser is now easier than ever with John Guest water dispensing and ice maker kits. These kits are made of non-toxic, food-grade materials and contain everything needed to install a water supply feed line. Kits come with 25 feet of ¼ in. LLDPE tubing, an angle stop valve and connection to the refrigerator.

Whole-house and Industrial Filtration Systems

John Guest CTS fittings make connecting whole-house and industrial water filtration systems simple. With no tools needed to install, they're easy to connect and can be used with copper, PEX or CPVC pipe. Full flow and non-toxic, John Guest CTS fittings are ideal for industrial water filtration systems. Fittings are available in ¾ in. and 1 in. CTS sizes.

Water Softener Connections

John Guest offers fittings for water softener installations in ¾ in. and 1 in. CTS sizes. These provide a quick and easy way to connect water softeners to existing copper, PEX or CPVC pipework.

Find Out More

We’re here to support you. Our local John Guest reps can help you find the right solution for your application. Get in touch by filling out the form below.

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