Schedule 40 PVC 1/2 Street Elbow MPT x NPT 412-005. Schedule 40 PVC 1/2 Street Elbow MPT x NPT Schedule 40 PVC 1/2 Elbow is a90° Street Elbow designed with opposing end threads. The NPT and MPT thread diameters are both 1/2 inch. The interior of the elbow is constructed with a smooth surface for less pressure loss. The material of this elbow is PVC which can handle higher volume than standard metal fittings. Schedule: 40 Material: PVC Size: 1/2 (MPT) x 1/2 (FPT) Max Temperature: 140° F Standards: ASTM D1784 & NSF Threaded Fittings PVC Schedule 40 Fittings