AUTO VENT BLACK PVC (3901 1 1/2" Call for Price  Quantity Available: 1   Call for Price

Replaces Any Secondary Plumbing Vent Protecting The Traps Of Kitchen Sinks, Bathrooms, Basins, Tubs, Showers, Washing Machines, Etc. Breaks Siphoning Action Caused By Draining Water. The Differential Created By Draining Water Automatically Opens Sealing Disc And As Drain Flow Stops, Spring Mechanism Automatically Closes Sealing Disc To Keep Water Seal In Trap Constant And Prevent Sewer Gas From Escaping Drain. MUST Be Located At Least 6" Above Trap Arm Top. 13/16 Thread.

- Automatic - Less Cleanout
- Professional - ABS
- Mechanical Vent Installs On-The Drain Line And Vents The Line Without Allowing Sewer Gas To Enter The Home
- Grade Of Steel For Spring 302 SS
- Use To Vent Drain Lines
- Helps Prevent Sewer Gas From Entering Your Home
- Spring-Loaded To Open With Negative Pressure And Close With Positive Pressure

SKU: 640194
Manufacturer:
Manufacturer Part #: 39012