An air admittance valve (AAV), also referred to as a Studor vent, Studor AAV or mini vent, is a one-way mechanical valve that is installed locally at the site of a plumbing feature, allowing proper venting to occur without a connection to a larger venting system and stack...
Tips for Air Admittance Valve Selection and Installation
Air admittance valves are helpful when you are unable to connect to an existing venting system or are simply looking to reduce roof penetrations for aesthetics
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