3/4", sharkbite push fit x fnpt elbow, allows for a 90 degree connection of 3/4" copper, cpvc, or pex pipe to a female connection, the easiest way to join copper, cpvc or pex pipe in any combination with no soldering, clamps, unions or glue, just insert the pipe & the stainless steel teeth bite down & grip tight, while a specially formulated o-ring compresses to create a perfect seal, disassembly is just as fast using the simple disconnect tool so fittings & valves can be easily changed & reused.