Oatey® Sure-Vent® 8 DFU Capacity Air Admittance Valve

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Oatey® Sure-Vent® 8 DFU Capacity Air Admittance Valve is a one-way valve designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system.

Click a file below to view/download

  • pdf LEED Green Building Submittal Sheet https://www.oatey.com//ASSETS/DOCUMENTS/ITEMS/EN/Air Admittance Valves and Vents.pdf;
  • pdf Sell Sheet https://www.oatey.com//ASSETS/DOCUMENTS/ITEMS/EN/LCS420E_AAVtrifold_0519.pdf;
  • pdf Submittal https://www.oatey.com//ASSETS/DOCUMENTS/ITEMS/EN/Submittal_DFU_Combined_R7.pdf;
Clear List
Properties Product No. Product Name QTY
NoImage NoImage

Size : 1.5in

39251 20 BRANCH, 8 STACK DFU SURE-VENT®, 1.5 IN, 90 DEG ABS SCHED 40 ADAPTER Add to Project List

Availability By Branch

Branch Name Available
Oatey 39251


  • Complies to ASSE Standard 1050 and 1051
  • For use as a secondary vent
  • One size approved to handle up to 2" vent pipe
  • Opens/closes as needed by building's plumbing system
  • IAPMO Listed
  • Closes through gravity


  • Size 1.5in
  • Type ABS




Availability By Branch

Branch Name Available

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