Zoom
Oatey Sure-Vent series 160 branch / 24 stack DFU, PVC air admittance valve (AAV). Solvent welds over 1-1/2" or 2" Sch 40/80 PVC pipe. 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: 4.69" high x 2.82" wide