SharkBite U118LFA Connector, 3/8 in MNPT, 1/2 in MNPT | SharkBite male connectors combine innovative push-to-connect design with a standard MNPT adapter on the opposite end. The push-fit end is compatible with copper, PEX, CPVC, PE-RT or SRD9 HDPE pipes and can be installed with no solder, glue, unions or tools required. This fitting is designed for potable water and radiant heating (including underground or behind the wall) applications with no access panels required.