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Oatey's Air Admittance Valve installation kit includes (1) Sure-Vent 20 DFU Branch / 8 DFU Stack Air Admittance (1) 1-1/2" P-trap, (1) 6" extension tube, (1) PVC threaded adapter and (1) deep box flange. The Sure Vent® 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. 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.

  • For use as a secondary vent
  • Tubluar adapter
  • One size approved to handle up to 2" vent pipe
  • Vents up to 24 DFU Branch or 8 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
  • Material: PVC
  • Brand: Oatey
  • Connection Size: 1.5 in.
  • DFU Rating: 20 Branch, 8 Stack
  • Color: White
  • Adapter Size: 1.5 in.
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20 DFU


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