Black fittings are used in sanitary drain; waste and vent (dwv); sewer and storm drainage applications.Not intended for pressure use.Maximum working temperature of 140°f.Conforms to standard: astm d 3965; astm d 2661; astm d 3311 and NSF 14.Application:non-portable water.Compatible pipe material:abs.Fitting size dimensions?3in x 3in.Connection 1: hub. Connection 2: hub.Features: underground rated.Fitting or connector type: coupling. Product weight (lb. ): 0. 376.