The National Diversified Sales Inc. (NDS) model WU-0750-T is a 3/4 inch Schedule 80 PVC threaded union fitting designed for high-pressure cold water plumbing, pool, spa, and irrigation installations. Constructed from high-impact PVC Type II material, it offers enhanced impact strength, chemical resistance, and corrosion immunity. This union features female pipe threaded (FPT) ends to connect to corresponding male pipe threaded (MPT) pipes, allowing for easy disassembly and maintenance without the need for solvent welding. An internal EPDM O-ring creates a leak-resistant seal. It meets or exceeds ASTM D1784, D2464, and D2467 standards for Schedule 80 PVC, has a working pressure of 150 psi (tested to 500 psi static at 72°F), and is suitable for temperatures up to 140°F (60°C). The fitting is IAPMO listed for Universal Plumbing Code (UPC) compliance and NSF/ANSI 61 certified, ensuring safety for potable water applications. Molded in the USA by K