GF Piping Systems PVC Pipe Fitting, Tee, Schedule 80, Gray, 3/4" NPT Female x Slip Socket Tee fitting with three openings for connecting and branching three pipes Socket openings on each end and female NPT threads on the branch for connecting three pipes PVC for chemical and corrosion resistance, high strength, and less weight than fittings made from metal Operating temperature range of 0 to 60 degrees C (32 to 140 degrees F) Meets ASTM D1784 and D1785 standards for quality assurance, and meets NSF standards 14 and 61 for potable water service