--- product_id: 368154658 title: "Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings" brand: "rat blockers" price: "4961461β‚«" currency: VND in_stock: true reviews_count: 6 category: "Rat Blockers" url: https://www.desertcart.vn/products/368154658-rat-blockers-stainless-steel-for-drains-permanent-rat-prevention-drains store_origin: VN region: Vietnam --- # Compact 4-inch design fits curved pipes Twin non-return valves for rat-proof flow High-grade stainless steel, rust & gnaw resistant Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings **Brand:** rat blockers **Price:** 4961461β‚« **Availability:** βœ… In Stock ## Summary > πŸš«πŸ€ Lock out rats, unlock peace of mind! ## Quick Answers - **What is this?** Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings by rat blockers - **How much does it cost?** 4961461β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/368154658-rat-blockers-stainless-steel-for-drains-permanent-rat-prevention-drains) ## Best For - rat blockers enthusiasts ## Why This Product - Trusted rat blockers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Universal Fit:** Designed for both clay and plastic 4-inch drain pipes - β€’ **Durable & Reliable:** Rustproof stainless steel withstands gnawing and corrosion - β€’ **Space-Smart Design:** Shorter profile fits tight, curved drain fittings effortlessly - β€’ **Peace of Mind Warranty:** 15 months manufacturer’s guarantee for long-term protection - β€’ **Permanent Rodent Defense:** Twin steel valves block rats while allowing free water flow ## Overview The Rat Blockers Stainless Steel Drain Valve is a robust, permanent solution engineered to prevent rat entry through 4-inch clay or plastic drains. Featuring twin non-return valves made from rust- and gnaw-resistant stainless steel, its compact design fits curved pipes seamlessly. Backed by a 15-month warranty, it ensures reliable, maintenance-free rodent control while allowing uninterrupted water flow. ## Description Product Description Stainless Steel Rat Blocker for Drains Twin Steel Valves, 4 inch Rat Flap(100mm/110mm) Steel Rat Blocker prevents rats from entering buildings through the drainage outlet. The non-return valve allows free flow of waste but blocks any rodents attempting entry in the other direction. You can stop calling your pest control and solve the problem once and for all. The Rat Blocker is an ideal solution to block rats from entering your property permanently. Our Rat Blocker is made from non-corrosive stainless steel. PERMANENT RAT ENTRY SOLUTION Our rat blocker is an immediate and permanent solution to stop the entry of rat/rodents SUITABLE FOR CLAY & PLASTIC DRAINS Our rat blockers can fit in both clay and plastic-type pipes in 4β€³ size. TWIN NON-RETURN VALVES Twin Valves, Allowing Free Flow but Also Blocks Rat Entry RUST & GNAW RESISTANT Created From High Performance Stainless Steel, Rust & Gnaw Resistant MUCH BETTER COMPARED TO CONVENTIONAL PEST CONTROL Rat blockers are much better compared to conventional pest control, such as poisoning. Aside from the smelling rat carcass, having kids around the house with poison is not an ideal scenario. Our rat blocker can fit in both clay and plastic-type pipes. Installing a Rat blocker will save you money on pest control and avoid unnecessary costs like lifting floorboards, removing plasterboards and more. Shorter Design for Curved Fittings RAT DRAIN BLOCKERS With the Stainless Steel Rat Blocker for Drains, no more nasty rodents in your pipes. Twin steel valves and a 4" rat flap with a 100mm/110mm hole size mean that this durable stainless steel product will keep rats out of your drainage system. With the Stainless Steel Rat Blocker for Drains, you will no longer have to worry about rats in your house. This rat blocker prevents rats from entering your house in the first place by blocking their access to drains. Please note other cheaper alternatives only have 1 single valve which offers less protection. Rat Blocker is an immediate and permanent solution to stop the entry of rat/rodents. Rat Blockers can fit in both clay and plastic-type pipes in 4β€³ size. Twin Non-Return Valves, Allows Free Flow but Also Blocks Rat Entry. Review: Well made: rigid construction does the job well - The rat blocker was purchased for an underground drain to a domestic property in the UK. It could be placed at either end of the drain pipe but I suggest it is where the flow of soiled water enters the inspection chamber. If there is a blockage further up the rat blocker can easily be removed although it would work well anywhere in the pipe work. I asked if it was flexible but the circular casing is, in fact, rigid. This meant it on just fitted into the pipe and I only managed to go into the pipe half way because of the way the pipe had been laid. Effectively it is jammed into the pipe but this works fine. As it is so well made there have been no blockages and 'ratty' came through it tail first and I dragged his carcase out. He died from poisoning. Until I found and sorted the entry point into the drainage system other rats could get into the drain but none of them could get past the rat blocker. With its two flaps it is impassable. Water and excrement easily pass through when there is sufficient water flowing. If solid waste is sitting in the blocker the spikey, serrated edge of the flaps would impede anything trying to push past as the flap would close as it was pushed. I am glad and relieved I bought this product as it solved what would have been a difficult problem. Obviously, insert the rat blocker in the pipe with the flaps opening in the downward flow direction. My advice is to insert the blocker ( I did not need to use the bolt which is the clamp for larger pipes I presume) and sleep well. Review: Expensive but excellent - Very robust. Great contraption. Not cheap but very good. Would recommend ## Features - PERMANENT RAT ENTRY SOLUTION: Our rat blocker is an immediate and permanent solution to stop the entry of rat/rodents - SUITABLE FOR CLAY & PLASTIC DRAINS: Our rat blockers can fit in both clay and plastic-type pipes in 4β€³ size. - TWIN NON-RETURN VALVES: Twin Valves, Allowing Free Flow but Also Blocks Rat Entry - RUST & GNAW RESISTANT: Created From High Performance Stainless Steel, Rust & Gnaw Resistant - 15 MONTHS MANUFACTURE'S WARRANTY: Guaranteed Product Quality for Long Lasting Protection for Your Home and Drainage System ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09J44D66F | | Best Sellers Rank | 129,511 in Garden ( See Top 100 in Garden ) 1,428 in Rodent Control | | Customer Reviews | 4.4 4.4 out of 5 stars (20) | | Date First Available | 10 Oct. 2021 | | Manufacturer | Rat Blockers | | Package Dimensions | 14.6 x 12.4 x 12 cm; 560 g | ## Images ![Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings - Image 1](https://m.media-amazon.com/images/I/51UVY1nw25L.jpg) ![Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings - Image 2](https://m.media-amazon.com/images/I/71dpoIs7qYL.jpg) ![Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings - Image 3](https://m.media-amazon.com/images/I/71C4H4+ibjL.jpg) ![Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings - Image 4](https://m.media-amazon.com/images/I/81hmT3DVPML.jpg) ![Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings - Image 5](https://m.media-amazon.com/images/I/616AeGe5fdL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Well made: rigid construction does the job well *by D***Y on 5 November 2022* The rat blocker was purchased for an underground drain to a domestic property in the UK. It could be placed at either end of the drain pipe but I suggest it is where the flow of soiled water enters the inspection chamber. If there is a blockage further up the rat blocker can easily be removed although it would work well anywhere in the pipe work. I asked if it was flexible but the circular casing is, in fact, rigid. This meant it on just fitted into the pipe and I only managed to go into the pipe half way because of the way the pipe had been laid. Effectively it is jammed into the pipe but this works fine. As it is so well made there have been no blockages and 'ratty' came through it tail first and I dragged his carcase out. He died from poisoning. Until I found and sorted the entry point into the drainage system other rats could get into the drain but none of them could get past the rat blocker. With its two flaps it is impassable. Water and excrement easily pass through when there is sufficient water flowing. If solid waste is sitting in the blocker the spikey, serrated edge of the flaps would impede anything trying to push past as the flap would close as it was pushed. I am glad and relieved I bought this product as it solved what would have been a difficult problem. Obviously, insert the rat blocker in the pipe with the flaps opening in the downward flow direction. My advice is to insert the blocker ( I did not need to use the bolt which is the clamp for larger pipes I presume) and sleep well. ### ⭐⭐⭐⭐⭐ Expensive but excellent *by C***S on 16 October 2022* Very robust. Great contraption. Not cheap but very good. Would recommend ### ⭐⭐⭐⭐⭐ Stops the rats. *by J***E on 15 September 2023* I was having an issue with rats coming into our single storey extension via the bathroom and getting into the flat roof. We found that they were coming through the drains as the toilet waste pipe has a big hole in it. I saw these and got 3. Best money spent as these fit into the old drains perfectly and I like that there are 2 layers. They let the waste out but don't let anything in. So far so good, no more rats. ## Frequently Bought Together - Rat Blockers Stainless Steel for Drains - Permanent Rat Prevention for Drains, Twin Steel Valves, 4 inch Rat Flap(95mm/105mm), Non-Return Valve, Shorter Design for Curved Fittings - Anti-Rat Rodent Barrier 110mm Toilet Outlet Drain Waste Soil Sewer Valve --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/368154658-rat-blockers-stainless-steel-for-drains-permanent-rat-prevention-drains](https://www.desertcart.vn/products/368154658-rat-blockers-stainless-steel-for-drains-permanent-rat-prevention-drains) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-07*