3/4" Clearloc Push Fit Adapter, Push Fit x MNPT.

The ClearLOC Removable Push-Fit Ebow installs 50% faster than traditional fittings, thanks to its transparent body made from advanced engineered PPSU (polyphenylsulfone) resin, the same material used in plastic PEX fittings. With ClearLOC, there’s no need to mark the tube anymore. Compatible with copper, PE-RT / PEX, and CPVC tubing, these fittings are also removable and reusable with the available release tools.