Oatey Sure-Vent Air Admittance Valves provide the ideal venting solution for island sinks, remote bathrooms and remodel jobs by eliminating the need for a stack vent. They are designed to block sewer gases in DWV systems by opening and closing when the slightest change in pressure is detected. Available with PVC or ABS adapters, this Sure-Vent air admittance valve vents up to 160 DFU (branch) or 24 DFU (stack) and fit 1-1/2 in.–2 in. pipes. Oatey products have earned the trust of plumbing professionals for over 100 years.
- Overall Depth - Front to Back: 2.5''
For years, I have had poor drainage in my bathroom sink, probably because of a clogged vent somewhere up on the roof. Since we don't have access to the roof due to our condo restrictions, this was a logical solution to the problem, to add some amount of venting to the pipe. Note, these are not allowed by plumbing code in Vermont, but only if used for primary venting. We used it for enhanced venting, so it should be perfect!. Katie. VT. 2023-04-07 10:03:40