GF Piping Systems PVC Pipe Fitting, Reducing Tee, Schedule 80, Gray, 1" x 1" x 3/4" Slip Socket Reducing tee with three openings for connecting and branching three pipes with different diameters Socket openings on each end for connecting three male 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