Spears 852 Series PVC Pipe Fitting, One Piece Flange, Class 150, Schedule 80, 1-1/4" NPT Female Flange for joining pipes or connecting valves in a piping system Female NPT threads for connecting to male NPT threaded pipes PVC for chemical and corrosion resistance, high strength, and less weight than fittings made from metal Maximum operating temperature of 140 degrees F Meets ASTM D1784 and D2467 standards for quality assurance, certified by NSF International for potable water service, and has a Class 150 bolt pattern per ANSI standard B16.5