- Why Use A Sure-Vent Air Admittance Valve.
- AAVs are often more economical than running vent pipe in new construction because they reduce the added need for supplies and labour.
- At zero pressure the Sure-Vent AAV is sealed, ready to react to pressure changes. The Sure-Vent AAV will not allow sewer gas to enter the structure.
The Oatey Sure-Vent 160 DFU Branch / 24 DFU Stack Air Admittance Valve is a one-way valve designed to allow air into the plumbing drainage system when negative pressures develop in the piping system, eliminating the need to tie into a stack vent. Superior engineering along with stringent quality standards ensure unmatched performance as a secondary vent. Oatey products have earned the trust of plumbing professionals for over 100 years.