--- product_id: 53533786 title: "McAlpine Anti Cross-Flow and Rodent Barrier Valve For WC Toliet outlets - Color : Black" brand: "cabinetsforbathrooms" price: "256.36 DT" currency: TND in_stock: true reviews_count: 8 category: "Cabinetsforbathrooms" url: https://www.desertcart.tn/products/53533786-mcalpine-anti-cross-flow-and-rodent-barrier-valve-for-wc store_origin: TN region: Tunisia --- # Rodent control valve Anti cross-flow barrier 4"/110mm standard fit McAlpine Anti Cross-Flow and Rodent Barrier Valve For WC Toliet outlets - Color : Black **Brand:** cabinetsforbathrooms **Price:** 256.36 DT **Availability:** ✅ In Stock ## Summary > 🚽 Keep pests out and peace in with the ultimate WC valve barrier! ## Quick Answers - **What is this?** McAlpine Anti Cross-Flow and Rodent Barrier Valve For WC Toliet outlets - Color : Black by cabinetsforbathrooms - **How much does it cost?** 256.36 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/53533786-mcalpine-anti-cross-flow-and-rodent-barrier-valve-for-wc) ## Best For - cabinetsforbathrooms enthusiasts ## Why This Product - Trusted cabinetsforbathrooms brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rodent-Resistant Barrier:** Engineered to block unwanted pests, ensuring your bathroom stays hygienic and rodent-free. - • **Seamless 4" Threaded Fit:** Designed to perfectly integrate with standard UK WC outlets for hassle-free installation. - • **Anti Cross-Flow Technology:** Prevents back-to-back WC pan cross-contamination, maintaining optimal sanitation. - • **Durable Black Polypropylene:** Robust, corrosion-resistant material built to last and blend discreetly with your plumbing. - • **Easy Compression Connection:** Quick and secure fitting with compression outlet for professional-grade reliability. ## Overview The McAlpine Anti Cross-Flow and Rodent Barrier Valve is a 4-inch polypropylene lift check valve designed for WC toilet outlets. It prevents cross-flow between back-to-back installations and blocks rodent ingress, featuring a black finish and threaded compression connections for easy, secure fitting. Trusted by professionals and homeowners alike to maintain sanitary, pest-free bathrooms. ## Description Barrier for WC Outlet - easily fitted Review: Perfect for rodent problems! - I struggled to source this at both B&Q and Screwfix (genuinely perplexed the staff in Screwfix) before finding it via desertcart and was good value. This worked perfectly for a rodent issue with a downstairs toilet leading directly into a sewer. The barrier valve worked perfectly and fit tightly within the sewer pipe, seems to have eradicated the problem and worked very well. Review: Four Stars - Seems to work, not RATs have entered my bathroom since fitting. ## Features - 4"/110mm - Will prevent cross-flow if fitted to WC pans that are installed back to back - For use where special measures are necessary for control of rodents - Manufactured in black ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | 6041264407 | | Brand | cabinetsforbathrooms | | Connector Type | Compression | | Customer Reviews | 4.1 out of 5 stars 109 Reviews | | Exterior Finish | Black | | Exterior finish | Black | | Inlet Connection Size | 4 Inches | | Inlet Connection Type | Threaded | | Inlet connection size | 4 Inches | | Inlet connection type | Threaded | | Manufacturer | Cabinetsforbathrooms | | Material | Polypropylene (PP) | | Model Number | amz-bath-fur-95 | | Number of Pieces | 1 | | Number of Ports | 1 | | Outlet Connection Size | 4 Inches | | Outlet Connection Type | Compression | | Outlet connection type | Compression | | Part Number | amz-bath-fur-95 | | Size | 4 inches | | Thread Size | 4 inches | | Thread Type | Threaded (Common UK Standard) | | Unit Count | 1.0 count | | Valve Type | Lift Check Valve | ## Product Details - **Brand:** cabinetsforbathrooms - **Exterior finish:** Black - **Inlet connection size:** 4 Inches - **Inlet connection type:** Threaded - **Manufacturer:** Cabinetsforbathrooms - **Material:** Polypropylene (PP) - **Number of ports:** 1 - **Outlet connection size:** 4 Inches - **Outlet connection type:** Compression ## Images ![McAlpine Anti Cross-Flow and Rodent Barrier Valve For WC Toliet outlets - Color : Black - Image 1](https://m.media-amazon.com/images/I/61mAITjvfgL.jpg) ![McAlpine Anti Cross-Flow and Rodent Barrier Valve For WC Toliet outlets - Color : Black - Image 2](https://m.media-amazon.com/images/I/41of6GeclSL.jpg) ## Questions & Answers **Q: Is this likely to stop rodents from entering if fitted vertically? In my situation there is little chance of back flow which would close the flap.** A: Hi no it won't work vertically mc alppine make samebut for vertical where the trap will close otheralturnitive is to further along pipe where it is horizontal then install you will need one that fits inside pipe it works well cabinets for bathrooms have this **Q: Is a similar fitting available for 160mm pipe? I've got to stop waste coming back up the pipe but its further down the sewer line.** A: Standard fitting **Q: Can this be fitted in the manhole in the sewer if it is the same size, or is is only for toilets.** A: Hi, we have fitted these into the inspection chamber/manhole. They fit inside the feeds into the chamber, and have successfully stopped the smell from a septic tank backing up and stinking out a bathroom. They would also stop rodents getting into the foul system. Hope that helps. **Q: Can this be used to prevent back draft of wind** A: From where and in what? ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect for rodent problems! *by M***S on 28 September 2016* I struggled to source this at both B&Q and Screwfix (genuinely perplexed the staff in Screwfix) before finding it via Amazon and was good value. This worked perfectly for a rodent issue with a downstairs toilet leading directly into a sewer. The barrier valve worked perfectly and fit tightly within the sewer pipe, seems to have eradicated the problem and worked very well. ### ⭐⭐⭐⭐ Four Stars *by J***I on 30 August 2015* Seems to work, not RATs have entered my bathroom since fitting. ### ⭐⭐⭐⭐⭐ Stops fumes coming back *by D***. on 21 July 2025* Delighted, it did the job, easy to fit ,good price ## Frequently Bought Together - Cabinetsforbathrooms McAlpine Anti Cross-Flow and Rodent Barrier Valve For WC Toliet outlets - Color : Black - Ideal Standard Dual Flush Pmatic Outlet Valve, EV98167 (Replacement for SV93467), Multi-Colour, 1.5" - Thomas Dudley Niagara Pneumatic Dual Flush Valve 316723, Multi-Colour --- ## 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.tn/products/53533786-mcalpine-anti-cross-flow-and-rodent-barrier-valve-for-wc](https://www.desertcart.tn/products/53533786-mcalpine-anti-cross-flow-and-rodent-barrier-valve-for-wc) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-09*