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4 Pcs 1-1/2 Inch ABS In-Line Vent Air Admittance Valve for Sink Tub Shower DrainProduct DescriptionColor:Black
Size:Fit for 1-1/2 InchNotes:
The vent valve\'s seal must be located at least 6 inches above the top of the trap pipe. All drainage systems using ventilation ports must be equipped with a main ventilation port connected to the atmosphere, and this ventilation port should be located in a position convenient for toilet ventilation.
The vent valve must be easily accessible for inspection or replacement; if installed within a wall, a simple access panel must be provided. Intended for use as an auxiliary ventilation device.Item Specifications
- Type:Does Not Apply
- Brand:Does Not Apply
- Color:Does Not Apply
- MPN: Does Not Apply
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