Spears P106 Series PVC DWV Pipe Fitting, Cleanout Plug, 3" NPT Male Cleanout plug for closing the end of a cleanout adapter Male NPT threads for connecting to female threaded 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)