Backflow Prevention Devices
Backflow Prevention Devices

VAP Automatic Plumbing Vent

The VAP is designed to prevent backflow of sewer gases and trap siphonage at the fixture. vents by allowing air into the drain lines while the fixture is draining. An economical solution to preventing trap siphonage and backflow of dangerous sewer gases. The VAP can be securely hand tightened.


Economical solution for preventing trap siphonage and backflow of sewer gases.


1-1/2" Threaded MNPT


The VAP Automatic Plumbing Vent is certified to NSF-24.


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