From the Manufacturer
This fitting incorporates stainless steel gripping teeth in the collets. These corrosion resistant teeth allow the connectors to interconnect with multiple materials without the need for special tools or tube inserts. It works with copper, CPVC, pex, LPDE, MPDE, HDPE and polybutylene tubing.
Product Description
1/4" Tube x 1/4" Male Pipe Thread, Quick Connect Adapter, For Poly Or Copper Tube Quick Connect, Holds Up To 250 PSI, 1 Piece, Quick & Easy Connections Without The Use Of Installation Tools, Great For New Installations Or Plumbing Repair Projects For Pex, Copper, & CPVC Pipe, Just Cut Pipe & Push Pex, Copper Or CPVC Tubing Into Fitting End Until Tubing Seats At Stop, Approved For Behind Wall Installations, NSF-14, NSF-61, CSA/ASTM & UPC Code Listed, Excellent Replacement For Qest & Flare, It Type Fittings.