# Rat Blockers for Sale, Non Return Valves for Drains: Rat Blockers to Prevent Rats for Drainage Systems > Stop rats in drains with our premium rat blockers\. Buy a durable rat proof drain cover and sewer rat blocker to protect your pipes in the UK\. 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Urban Pests: Why Rat Blockers in Hertfordshire Are Your First Line of Defense](https://www.ratblockers.com//rural-vs-urban-pests-why-rat-blockers-in-hertfordshire-are-your-first-line-of-defense/) ## Products - [Single Flap Rat Blocker \- 4 inch Rat Flap \(95\-105mm\), Non\-Return Valve, with securing cable](https://www.ratblockers.com//product/single-flap-rat-blocker-4-inch/): 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 4 inch rat blocker is an ideal solution to block rats from entering your property permanently\. Our 4 inch rat blocker is made from non\-corrosive stainless steel and we offer a 12 month warranty\. - [New Design Rat Blocker \- 4 inch Rat Flap \(95mm/105mm\), Non\-Return Valve, Twin Steel Flaps, Shorter Length for Curved Drain Fitting](https://www.ratblockers.com//product/short-design-rat-blocker-4-inch-for-curved-drain-fitting/): 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 4\-inch rat blocker is an ideal solution to block rats from entering your property permanently\. Our 4\-inch rat blocker is made from non\-corrosive stainless steel and we offer a 12 month warranty\. - [6 inch Rat Blocker, Rat Flap for Drains \(145/150\)mm, Non\-Return Valve, Twin Steel Flaps, Shorter Length for Curved Drain Fitting](https://www.ratblockers.com//product/rat-blocker-6-inch-rat-flap-145mm-150mm-non-return-valve-twin-steel-flaps/): 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 6\-inch rat blocker is an ideal solution to block rats from entering your property permanently\. Our 6\-inch rat blocker is made from non\-corrosive stainless steel and we offer a 12 month warranty\. - [Rat Blocker \- 5 inch Rat Flap\(125mm/130mm\), Non\-Return Valve, Twin Steel Flaps](https://www.ratblockers.com//product/rat-blocker-5-inch-rat-flap125mm-130mm-non-return-valve-twin-steel-flaps/): 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 5\-inch rat blocker is an ideal solution to block rats from entering your property permanently\. Our 5 inch rat blocker is made from non\-corrosive stainless steel and we offer a 12 month warranty\. - [Clearance Stock \- 4 Inch Rat Blockers](https://www.ratblockers.com//product/clearance-stock-4-inch-rat-blockers/): 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 4\-inch rat blocker is an ideal solution to block rats from entering your property permanently\. Our 4\-inch rat blocker is made from non\-corrosive stainless steel and we offer a 12 month warranty\. ## Avada Slides - [Home](https://www.ratblockers.com//slide/home/) - [Stainless Steel Rat Flap](https://www.ratblockers.com//slide/stainless-steel-rat-flap/) - [Home](https://www.ratblockers.com//slide/home-2/) ## Categories - [Rat Blockers](https://www.ratblockers.com/category/rat-blockers/) - [Uncategorized](https://www.ratblockers.com/category/uncategorized/) - [how to rat infestation](https://www.ratblockers.com/category/how-to-rat-infestation/) - [rats in toilet bowl](https://www.ratblockers.com/category/rats-in-toilet-bowl/) - [drain cover](https://www.ratblockers.com/category/drain-cover/) ## Tags - [drain pipe rat stopper](https://www.ratblockers.com/tag/drain-pipe-rat-stopper/) - [buy drain rat blockers](https://www.ratblockers.com/tag/buy-drain-rat-blockers/) - [rat blocker central london](https://www.ratblockers.com/tag/rat-blocker-central-london/) - [stainless steel rat flap](https://www.ratblockers.com/tag/stainless-steel-rat-flap/) - [stop rats in drains](https://www.ratblockers.com/tag/stop-rats-in-drains/) ## Section Category - [content](https://www.ratblockers.com/fusion_tb_category/content/) ## Product categories - [Mouse Trap](https://www.ratblockers.com/product-category/mouse-trap/) - [4 Inch](https://www.ratblockers.com/product-category/4-inch/) - [6 Inch](https://www.ratblockers.com/product-category/6-inch/) - [Rat Blocker Installation Pole](https://www.ratblockers.com/product-category/rat-blocker-installation-pole/) - [5 inch](https://www.ratblockers.com/product-category/5-inch/) ## Category - [sections](https://www.ratblockers.com/element_category/sections/) - [elements](https://www.ratblockers.com/element_category/elements/) - [columns](https://www.ratblockers.com/element_category/columns/) ## Avada Sliders - [Stainless Steel Rat Flap](https://www.ratblockers.com/slide-page/stainless-steel-rat-flap/) - [Home \( Cloned \)](https://www.ratblockers.com/slide-page/home-2/) - [Home](https://www.ratblockers.com/slide-page/home/) ## Optional - [Sitemap index](https://www.ratblockers.com/sitemap_index.xml)