The Oatey® Sure-Vent® 1.5" – 2" 160 Branch, 24 Stack DFU Air Admittance Valve with PVC Schedule 40 adapter is a one-way valve designed to allow air into the plumbing drainage system when negative pressures develop in the piping system. Superior engineering along with stringent quality standards ensure unmatched performance. Oatey products have earned the trust of plumbing professionals for over 100 years.

For use as a secondary vent
PVC Schedule 40 Adapter
One size approved to handle up to 3" vent pipe
Vents up to 160 DFU Branch or 24 DFU Stack
Sweet Spot™ technology opens valve at -0.01 psi and seals at 0 psi and above
Screening on air inlets to guard the seal
Protective sleeve provides grip for installation and keeps valve free from debris
100% functionally tested at ¼" H2O and 30" H2O ensuring trouble free performance
Complies to ASSE Standard 1050 and 1051
International Plumbing Code (IPC) and Uniform Plumbing Code (UPC) approved
For warranty product details, refer to the Oatey Limited Warranty document