GF Piping Systems CPVC Pipe Fitting, Close Nipple, Schedule 80, Gray, 1/2" NPT Male, 1-1/8" Length Close nipple fitting for connecting two threaded pipes Male NPT threads on both ends for connecting pipes with female NPT threaded ends 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