--- product_id: 55321405 title: "Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm" brand: "plumbing4home" price: "Bs.4923" currency: BOB in_stock: true reviews_count: 3 category: "Plumbing4 Home" url: https://www.desertcart.bo/products/55321405-horizontal-pvc-plastic-sewage-drain-check-non-return-valve-backwater store_origin: BO region: Bolivia --- # 160mm flange size for universal fit Automatic, power-free backflow prevention Chemical & heat-resistant high-quality PVC Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm **Brand:** plumbing4home **Price:** Bs.4923 **Availability:** ✅ In Stock ## Summary > 🛠️ Stop Backflow Before It Starts — The Ultimate Shield for Your Sewage System! ## Quick Answers - **What is this?** Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm by plumbing4home - **How much does it cost?** Bs.4923 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/55321405-horizontal-pvc-plastic-sewage-drain-check-non-return-valve-backwater) ## Best For - plumbing4home enthusiasts ## Why This Product - Trusted plumbing4home brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable PVC Construction:** Crafted from premium chemical- and heat-resistant PVC for long-lasting performance. - • **Floodproof Your Lower Floors:** Protects against costly backflow flooding with reliable 160mm sewage pipe installation. - • **Rodent-Resistant Seal Design:** Innovative seal guard blocks rodents from invading your building’s interiors. - • **Sediment-Free Smooth Interior:** Engineered smooth surfaces prevent sediment buildup, maintaining optimal sewage flow. - • **Effortless Automatic Operation:** No power needed—self-activating valve ensures seamless backwater prevention 24/7. ## Overview The KARMAT 160mm Horizontal PVC Backwater Check Valve is a high-quality, chemical-resistant plumbing valve designed to prevent sewage and stormwater backflow in lower-floor rooms. Featuring an automatic, power-free operation and rodent-resistant seals, it ensures durable, maintenance-friendly protection against flooding and contamination in residential and commercial buildings. ## Description Karmat Backwater Valves (Check Valves) effectively ensure chambers located on the lower floors against flooding caused by backflow of stormwater and sewage. Return flow can be caused by heavy rain, thaw or flooding. The use of anti-flood devices for rooms located on the lower floors is required by mandatory regulations related to technical conditions that must be met by building codes. The shape of the seal guard and guard has been designed to protect against damage to the trim by rodents and by slipping during sewage flow. Advantages: - Karmat check valves work automatically and do not require external power supply. All operations related to the use of the device are very simple and possible to be carried out by any user; - Due to the manufacturing care and high-quality materials used in the manufacturing process guarantee the efficient operation and high durability of the product; - The interior of the device with its well-profiled smooth surface, protects against the collection of sediment and subsidies complete and intact sewage flow. - Seals were made from rubber of high resistance to atmospheric influences and aging Due to its construction, the Karmat check valve can successfully replace an access pipe installed in the outlet of sanitary sewage pipes of buildings. Check valves are installed in horizontal sewer pipes before they exit a building or sewer drain outside the building before its connection to an external network. Review: Five Stars - Perfect product, well built and good quality. Review: 6inc non return valve - Very good item ## Features - KARMAT Backwater Valves effectively secure any rooms located on the lower floors; - Installed in 160mm sewage pipes before they exit a building or sewage drains; - Prevents against rodents entering building interiors through the sewage and other sanitary systems; - Secure the lower floors against flooding caused by back flow of storm water and sewage; - Made of high-quality PVC Plastic - resistance to the effects of chemicals and hot sewage; ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BWOP4AE | | Best Sellers Rank | 107,733 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 894 in Pipes | | Brand | PLUMBING4HOME | | Connector Type | Flanged | | Customer Reviews | 4.8 out of 5 stars 8 Reviews | | Exterior Finish | Plastic | | Exterior finish | Plastic | | Inlet Connection Size | 1.6E+2 Millimeters | | Inlet Connection Type | Flange | | Inlet connection size | 1.6E+2 Millimeters | | Inlet connection type | Flange | | Item Weight | 1.89 Kilograms | | Manufacturer | Karmat | | Material | Plastic | | Model Number | 450c | | Number of Ports | 2 | | Outlet Connection Size | 1.6E+2 Millimeters | | Outlet Connection Type | Flange | | Outlet connection type | Flange | | Part Number | 450c | | Set Name | Single | | Size | 160mm | | Smart Home Compatibility | Not Smart Home Compatible | | Specification Met | NF | | Valve Type | Check Valve | ## Product Details - **Brand:** PLUMBING4HOME - **Exterior finish:** Plastic - **Inlet connection size:** 1.6E+2 Millimeters - **Inlet connection type:** Flange - **Material:** Plastic - **Number of Packs:** 1 - **Number of ports:** 2 - **Outlet connection size:** 1.6E+2 Millimeters - **Outlet connection type:** Flange - **Specification met:** NF ## Images ![Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm - Image 1](https://m.media-amazon.com/images/I/61Re2Jbwa9L.jpg) ![Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm - Image 2](https://m.media-amazon.com/images/I/419MEjA9YpL.jpg) ![Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm - Image 3](https://m.media-amazon.com/images/I/61xSjeEQlaL.jpg) ![Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm - Image 4](https://m.media-amazon.com/images/I/715x88XnVQL.jpg) ![Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm - Image 5](https://m.media-amazon.com/images/I/71KZH1T96gL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Five Stars *by A***R on 20 January 2016* Perfect product, well built and good quality. ### ⭐⭐⭐⭐⭐ 6inc non return valve *by G***Y on 2 September 2024* Very good item ### ⭐⭐⭐⭐⭐ Que le diamètrecorresponde *by L***E on 30 October 2020* Bonjour, j'ai installé ce clapet anti retour sur une évacuation des pluviales ce qui a stoppé les remontées d'odeurs d'égouts le résultat est parfait,plus de relents! ## Frequently Bought Together - Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm - Roshield Rat Drain Guard | Stop Rats within Drainage & Properties | Rodent Flap Control & Prevention Proofing (Stainless Steel 4"/110mm) - Buffalo Pest Control Water and Rodent Non Return Valve 110mm / 4 inch --- ## 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.bo/products/55321405-horizontal-pvc-plastic-sewage-drain-check-non-return-valve-backwater](https://www.desertcart.bo/products/55321405-horizontal-pvc-plastic-sewage-drain-check-non-return-valve-backwater) --- *Product available on Desertcart Bolivia* *Store origin: BO* *Last updated: 2026-07-07*