This item cannot be shipped to the following state(s): AK,CA,GU,HI,PR,VI,VT
The OATEY Sure-Vent 1-1/2 in. x 2 in. PVC Air Admittance Valve features a 1-way valve that permits air to enter when negative pressures develop in the piping system. Closes by gravity to seal the vent terminal at zero differential pressure. Prevents sewer gases from escaping into a building.