Sure-Vent Air Admittance Valve, DFU 160 Branch / 500 Stack, 3″ PVC Hub or 4″ Spigot, Sch 40

Description

Oatey Sure-Vent series 160 branch / 500 stack DFU, PVC air admittance valve (AAV). Solvent welds over 3″ PVC pipe or inside a 4″ PVC fitting. AAV acts as a one-way (check) valve, permitting air to enter the plumbing drainage system when negative pressures develops. Replaces the vent pipe where permitted. Overall dimensions are: 7.39″ high x 4.10″ wide