2 Pcs 1-1/2 Inch ABS In-Line Vent Air Admittance Valve for Sink Tub Shower Drain
USD 12.99 USD
Specifications
| Brand | Unbranded |
| Outlet Connection Size | 1.5 Inches |
| Item Dimensions L X W X H | 1 x 1 x 1 inches |
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.
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