Spears P104P Series PVC DWV Pipe Fitting, Trap Adapter with Plastic Nut, 1-1/2" Hub x 1-1/4" Slip Adapter to connect traps to drains Hub connection on one end and slip joint connection on the other for connecting two unthreaded pipes PVC for corrosion resistance, high strength, and less weight than fittings made from metal Operating temperature range of 73 to 140 degrees F (23 to 60 degrees C) Complies with ASTM D2665 and ASTM D3311 and certified to NSF/ANSI International Standard 14 (NSF-dwv) and NSF International Uniform Plumbing Code (NSF-U.P. Code)