John Guest is a world-leading manufacturer of high-quality engineered push-fit fittings, valves and LLDPE Tubing, ranging in 1/4” to 1/2” O.D. and 3/8” to 1” CTS sizes. The fittings are available in a variety of configurations for a wide range of markets including Water Filtration/Treatment, Beverage Dispensing, Marine/RV, and Hydroponics/Agricultural Markets. John Guest products are manufactured from FDA approved materials, are lead-free, and are ideal for us in confined spaces. Fittings are easy to use and require no tools to make reliable leak-free connections. John Guest products are listed with NSF International Standards 14, 61, CSA Standards pw and IAPMO Uniform Plumbing Codes. John Guest is a part of the RWC global network.