Check the listing for details. Apollo 1 in. Blue Twister Polypropylene Insert Coupling. Condition: New. Listed at 5.97 USD. Apollo 1 in. Blue Twister Polypropylene Insert Coupling This innovative and patented Twist-In polypropylene 1/2 in. coupling connects 2 sections of IPS-sized polyethylene pipe or hose to 1 another. There is no restriction on the number of connections that can be made to achieve desire pipe length. For an additionally secure connection is recommended that stainless steel clamps are used to secure fitting to pipe.Made from polypropylene plasticNot compatible with compressed air or gasesDesigned for easy installation without toolsPatented double-helix design makes secure connections very easyFor use with polypropylene pipe100% corrosion resistantASTM D-2609 ANSI/NSF 14 and 11By twisting the fitting clockwise, completion of a secure connection is easier than beforeCold water use onlyCalifornia residents see Prop 65 📦 Fast Shipping 5 ⭐ Service 💯% Valid Tracking and Delivery