| Item dimensions L x W x H | 1 x 1 x 1 inches |
|---|---|
| Outlet Connection Size | 1.5 Inches |
| Exterior Finish | Plastic |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Number of Ports | 2 |
| Inlet Connection Size | 1.5 Inches |
| Country of Origin | China |
| UPC | 726084316133 |
Check the listing for details. 2 Pcs 1-1/2 Inch NPT ABS in Line Vent,Black Air Admittance Valve to Prevent Sewe. Condition: New, Made in China. Listed at 11.66 USD. Working principle:The air vent valve features a spring-loaded design. As water and waste flow through the drainpipe, negative pressure is created within the pipe, causing the seal to lift and allow air to enter.