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Title: Canplas Backwater Valve, 4‑Inch PVC, White  
Category: Plumbing Fixtures  
Brand: Canplas  
Description: A lightweight 4‑inch PVC backwater valve that prevents sewage and stormwater from reentering a building.  
Details: Features a flapper seal, socket‑to‑socket DWV connection, Acme threads for strong attachment, and a neoprene O‑ring for reliable sealing.

Price is $