{"product_id":"flapper-3-to-4-in-for-backwater-valve","title":"Flapper - 3 to 4\" - for Backwater Valve","description":"\u003cp\u003eClean Check® extendable backwater valves prevent sewage backup into a residence or building as a result of a plugged sewer system, excess volume in the system or groundwater flooding. They are designed to be installed easily outside a home, business or other structure, without using a costly manhole, and are readily accessible for maintenance or cleaning. The extendable valves consist of a tee-shaped valve body, a top collar and a bottom collar with a replaceable PVC flapper attached. In the event of back-pressure, the flapper blocks the reverse flow and prevents a sewage backup. Clean Check® valves are available in ABS and PVC and in multiple sizes, to meet the needs of most residential and commercial construction. Vertical offset from upstream to downstream side is: 3 in and 4 in valves - 0.4 in, 6 in valve - 0.5 in.\u003c\/p\u003e","brand":"CLEAN CHECK","offers":[{"title":"Default Title","offer_id":53407042306337,"sku":"96980","price":24.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1905\/1041\/files\/RectorSeal_96980_9499dfaa-f05c-4ca5-8b33-b37d73505a83.jpg?v=1790122583","url":"https:\/\/standardvmi.com\/products\/flapper-3-to-4-in-for-backwater-valve","provider":"Standard Plumbing Supply","version":"1.0","type":"link"}