Spears 835-CSR Series CPVC Pipe Fitting, Adapter, Schedule 80, 1" Socket x Stainless Steel Reinforced NPT Female Adapter for connecting pipes or fittings of different types Socket opening on one end and reinforced female NPT threads on the other for connecting two pipes with different ends CPVC for chemical and corrosion resistance, high strength, and better resistance to high temperatures and pressures than PVC Maximum operating temperature of 200 degrees F Meets ASTM D1784 and F439 standards for quality assurance, certified by NSF International for potable water service, and ABS Type Approved for marine and offshore applications