Oatey 39016 Sure Vent Air Admittance Valve, 1.5" - 2" Solar Lights Accessories Special Features: With Solid Structure

Special Features: With Solid Structure

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Oatey 39016 Sure Vent Air Admittance Valve, 1.5" - 2" Solar Lights Accessories Special Features: With Solid StructureThe purpose of an Air Admittance Valve is to provide a method of allowing air to enter the plumbing drainage system without the use of a vent extended to open air and to prevent sewer gases from escaping into a building. An 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. The device shall close by gravity and seal the vent terminal at zero