Oatey® 3" – 4" 500 DFU Sure-Vent AAV 3" x 4" Sch. 40 PVC adapter Brand_Danner Fully assembled and ready to

Fully assembled and ready to use

it also features a back door to retrieve mail without entering the street

may result

or ATV/tractor-mounted sprayers

Outer Frame Dimensions: 9"" x 15

Oatey® 3" – 4" 500 DFU Sure-Vent AAV 3" x 4" Sch. 40 PVC adapter Brand_Danner Fully assembled and ready toOatey Sure Vent 500 DFU Capacity Air Admittance Valve's one way valve is designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system. Complies to ASSE Standard 1050 and 1051 For use as a secondary vent One size approved to handle up to 4" vent pipe Opens closes as needed by building's plumbing system