The NIBCO PVC DWV P-Trap with cleanout and plug is used in residential and commercial drain, waste and vent systems. This P-Trap features a hub x hub x cleanout with plug connection to provide a means for clearing potential clogs. The p-trap provides a water seal so that wastewater will automatically be trapped in the arc of the fitting, thereby preventing unwanted gases from entering the house.PVC requires a primer before cementingUse under the discharge of a plumbing fixture or drain to help prevent sewer gas from escapingFor use with a non-pressurized sanitary systemHub x hub x cleanout solvent-welded connectionsMaximum working pressure of 5 psiNSF/ANSI Standard 14