Bath Heater Tailpiece for industry standard 1-1/2" buttress thread x 1" SPG PVC pipe size. 1 per pack. This PVC coupling connects the bath heater to 1 inch PVC pipe fittings, has 1" male spigot to fit into any 1" fitting or 1" Tee or using a 1x1" coupling, connects to 1" PVC pipe or flex pipe. 42-0031F-A-K

Features o-ring groove for standard o-ring or ridged gasket. Measures 2-7/16" outside diameter of threads, approximately. 1" Spg is offset to permit full drainage of heater when tub is emptied. Sold as a single piece, with one o-ring.