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

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 Review

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 Feature

• Complies to ASSE standard 1050 and ANSI/ASSE 1051
• For use as a secondary vent
• Opens/closes as needed by building's plumbing system
• Use as an air inlet source
• One size approved to handle up to 4-Inch vent pipe

OATEY SURE-VENT AIR ADMITTANCE VALVE 500 DFU. 3" x 4" PVC schedule 40 adapter. Approved for up to 4" pipe. Complies to ASSE standard 1050 and ANSI/ASSE 1051. Use as an air inlet source or a secondary vent. Opens and closes as needed by building's plumbing system.