Use this 3/4 in. pressure C x FIPT adapter to adapt solder connections to threaded connections in commercial and residential settings. It is ideal for use with potable water, air conditioning and refrigeration systems. This underground-rated, female-threaded adapter is designed for water-supply piping above ground. Its a maximum working pressure reaches 582 PSI. Constructed from high-quality copper, this pressure adapter resists dezincification to preserve its mechanical strength and is reusable to suit sustainable projects. 3/4 in. Inside Diameter and 0.875 in. Outside Diameter Copper material Used for water supply piping above-ground Adapt to standard male pipe threads with solder connection Maximum 582 PSI - maximum working pressure is the rating of the fitting only, at water temperature range of -20 to 100° F Dezincification resistant Third-party certified to NSF/ANSI 61 and 372