--- product_id: 9574482 title: "Oatey 4 In. PVC Backwater Valve - 1 Each" brand: "oatey" price: "84753CFA" currency: XOF in_stock: true category: "Oatey" url: https://www.desertcart.sn/products/9574482-oatey-4-in-pvc-backwater-valve-1-each store_origin: SN region: Senegal --- # Elastomeric seal for leak-proof protection 4-inch threaded inlet/outlet Made in USA quality Oatey 4 In. PVC Backwater Valve - 1 Each **Brand:** oatey **Price:** 84753CFA **Availability:** ✅ In Stock ## Summary > 🔧 Stop backflow before it starts — secure your plumbing like a pro! ## Quick Answers - **What is this?** Oatey 4 In. PVC Backwater Valve - 1 Each by oatey - **How much does it cost?** 84753CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/9574482-oatey-4-in-pvc-backwater-valve-1-each) ## Best For - oatey enthusiasts ## Why This Product - Trusted oatey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Industry-Backed Performance:** Meets ASME, ASTM, and ANSI standards for professional-grade plumbing safety. - • **Leak-Proof Elastomeric Seal:** Advanced flapper design guarantees zero backflow, protecting your property. - • **Trusted American Craftsmanship:** Proudly made in the USA, ensuring durability and reliability you can count on. - • **Precision 4-Inch Threaded Connections:** Seamlessly fits standard plumbing setups for hassle-free installation. - • **Proven Reliability with 100+ Years Legacy:** Join thousands of pros who trust Oatey for consistent, high-quality results. ## Overview The Oatey 4-Inch PVC Backwater Valve is a professionally engineered sewage check valve designed to prevent backflow with a durable elastomeric seal. Made in the USA and compliant with ASME, ASTM, and ANSI standards, it offers reliable, leak-proof protection for residential and commercial plumbing systems. Trusted by plumbing experts for over a century, this valve ensures your property stays safe from unwanted water intrusion. ## Description Product Description The Oatey Backwater Valve is designed as a sewage check valve to prevent pumped water from flowing back into the basin. Its elastomeric seal inside the flapper ensures a tight seal, preventing fluid from entering. Oatey products have earned the trust of plumbing professionals for over 100 years. From the Manufacturer Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry ## Features - Made in United States ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BQSFJ6 | | Best Sellers Rank | #155,862 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #182 in Faucet Valves | | Brand Name | Oatey | | Connector Type | connector_type | | Customer Reviews | 4.6 4.6 out of 5 stars (285) | | Exterior Finish | White | | Global Trade Identification Number | 00038753439044 | | Included Components | Backwater Valve | | Inlet Connection Size | 4 Inches | | Inlet Connection Type | threaded | | Item Dimensions | 11.25 x 8 x 7.4 inches | | Item Type Name | Oatey | | Item Weight | 4.25 Pounds | | Manufacturer | Oatey | | Manufacturer Part Number | 43904 | | Manufacturer Warranty Description | 1-year limited | | Material Type | Polyvinyl Chloride (PVC) | | Model Number | 43904 | | Number of Pieces | 1 | | Number of Ports | 1 | | Outlet Connection Size | 4 Inches | | Outlet Connection Type | FNPT | | Size | 4 Inch | | Specification Met | ASME, ASTM, ANSI | | Thread Size | 4 inches | | Thread Type | threaded | | UPC | 038753439044 | | Unit Count | 1.0 Count | | Valve Type | backwater,backwater valve | ## Product Details - **Brand:** Oatey - **Exterior Finish:** White - **Inlet Connection Size:** 4 Inches - **Inlet Connection Type:** threaded - **Item dimensions L x W x H:** 11.25 x 8 x 7.4 inches - **Material:** Polyvinyl Chloride (PVC) - **Number of Ports:** 1 - **Outlet Connection Size:** 4 Inches - **Outlet Connection Type:** FNPT - **Specification Met:** ASME, ASTM, ANSI ## Images ![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 1](https://m.media-amazon.com/images/I/711ZR0mU37L.jpg) ![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 2](https://m.media-amazon.com/images/I/71s0SuMm6LL.jpg) ![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 3](https://m.media-amazon.com/images/I/71rMyVS0O5L.jpg) ![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 4](https://m.media-amazon.com/images/I/71IsHeT8dUL.jpg) ![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 5](https://m.media-amazon.com/images/I/61YFxj3l4dL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: This is a type of check valve correct? The ability to take the lid off serves what purpose? Could you run a snake down the line with the top off?** A: Taking the lid off allows you to clear debris out of the valve. Yes--you get full access to the line from the top of the valve. I use it to drain a yard that floods during high tide. Works well. **Q: Can this valve be used under ground?** A: Yes, our Backwater valves can be used underground. You can also install an access sleeve (straight piece of pipe) in order to service the valve at the surface. **Q: I received this valve and it came with a seal for the flapper. However, the seal will not stay in the grove on the flapper. Any suggestions?** A: Hi. It comes with 2 O rings, one is for the flapper, add some syllicon glue, like the used on motor engines, this backwater works really good, **Q: Does this fit 3" schedule 40?** A: Yes, 3" schedule 40 PVC ## Frequently Bought Together - Oatey 4 in. PVC Backwater Valve - Oatey 3 in. PVC Backwater Valve - Supply Giant 37622CS No-Hub Coupling Heavy Duty Colored Shield, 4 inch, Red --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/9574482-oatey-4-in-pvc-backwater-valve-1-each](https://www.desertcart.sn/products/9574482-oatey-4-in-pvc-backwater-valve-1-each) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-08*