Air admittance valve. For use as a secondary vent. Opens and closes as needed by building's plumbing system. Use as an air inlet source. One size approved to handle up to 4" vent pipe. Complies to ASSE st

In stock
Size 2 Inches x 2 Inches x 3 Inches
Gtin 00038753392202
Mpn 1593-3492
Condition new
Material Metal