GF Piping Systems CPVC Pipe Fitting, Coupling, Schedule 80, Gray, 2" x 1/2" Slip Socket Coupling for connecting two pipes with the same diameter in a straight run Socket openings on both ends for connecting two male pipes CPVC for chemical and corrosion resistance, high strength, and better resistance to high temperatures and pressures than PVC Operating temperature range of 0 to 93 degrees C (32 to 200 degrees F) Meets ASTM D1784 and F441 standards for quality assurance, and meets NSF standards 14 and 61 for potable water service