Oatey 39223 3-Inch x 4-Inch Sure Vent Air Admittance Valve 500 DFU with 3-Inch x 4-Inch PVC Schedule 40 Adapter, Black/White
Price 32.33 - 65.56 USD
Sensitivity to pressure changes, combined with its ability to consistently open and close, is what distinguishes the Oatey Sure-Vent AAV from all others. Superior engineering along with stringent quality standards ensure a lifetime of unmatched performance. Available in 6, 20, 160, and 500 DFU.