Watts PL-3065 Pipe Adapter, 3/8 x 1/4 in, Tube x FIP, Plastic, 150 psi Pressure

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.