Quick Connect Push-Fit fittings are designed and manufactured for many years of Leak Free service. The fittings are made of a supreme performance 100% BPA Free thermoplastic material (Polypropylene). The tested design allows users to connect and disconnect quick and easy without the need of any other tools. Applications include multiple potable liquids such as reverse osmosis drinking water, beverage dispensing, coffee machines, RV and Marine, misting systems, ice makers and many more. A quick connect fitting is a coupling used to provide a fast, make-or-break connection of fluid transfer lines. Operated by hand, quick connect fittings replace threaded or flanged connections, which require wrenches. Zero-leak connection No tools or tube inserts required Inlet Thread Type: Compressions/Push Quick disconnection without other tools Maximum Working Temperature: 140°F Minimum Working Temperature: 33°F Outlet Thread Type: Compression/Push Suitable for use in hot and cold