Two Pack In Line Air Admittance Valve 1-1/2 Inch NPT ABS Black Prevent Sewer Gas Odors For RVs Boats And Homes Plumbing Vent For Pipes Tubes Showers Sinks Drainage System

Two-Pack 1-1/2 Inch ABS In-Line Vent Valves for Drains
✔️ 2-pack of 1-1/2 inch NPT ABS inline vent valves for drains

This inline vent valve set includes 2 black ABS air admittance valves that prevent sewer gases from entering living spaces. Use these handy devices in RVs, boats, or homes where traditional vent runs are difficult to install.

✅ 2 x 1-1/2 inch NPT ABS inline air admittance valves for drains
✅ Spring-loaded seal lifts under negative pressure to admit air and prevent siphoning
✅ Durable ABS construction with chemical resistance for long-term use
✅ Easy installation on PVC drain pipes, replacing secondary vent lines

💡 What is an inline air admittance valve and how does it work in a 1-1/2 inch ABS vent system?

This handy device lets air into the drainage system to prevent siphoning and sewer gas entry. - Handy for tight spaces where traditional vent piping is hard to run - Replaces bulky exterior vent runs, saving time and cost - ABS material provides durability and chemical resistance in homes, RVs, and boats