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Free Shipping on orders over $49Air Admittance Valve, Constructions: PVC, 5 1/4 inch Overall Length, 3 - 4 inch dia. Pipe Size, Slip Connection, Standards: ASSE Performance Standard 10510 And 1051, NES-592, NSF Standard 14, IAPMO, File No C-3803, ITS Intertek Testing Services, For Use With: Venting Single Fixture, Individual Branch, Circuit Vent or Stack Type application up to 500 DFU
