This SharkBite Female Elbow is FNPT on one end, and push-to-connect on the opposite end. These fittings allow the user to make a 90-degree connection to copper, PEX, CPVC or PE-RT pipes. This fitting is designed for potable water and radiant heating (including underground or behind-the-wall) applications with no access panels required. It is rated up to 200 degrees F and 200 psi.