--- product_id: 144502505 title: "3/4\" Reduced Injection Check/Back Pressure Valve Assembly" brand: "watts" price: "£435.45" currency: GBP in_stock: true category: "Watts" url: https://www.desertcart.co.uk/products/144502505-3-4-reduced-injection-check-back-pressure-valve-assembly store_origin: GB region: United Kingdom --- # 3/4" NPT threaded connections Quarter-turn full port ball valve shutoffs Lead-free bronze body for durability & safety 3/4" Reduced Injection Check/Back Pressure Valve Assembly **Brand:** watts **Price:** £435.45 **Availability:** ✅ In Stock ## Summary > 🛠️ Secure your water supply with precision-engineered peace of mind! ## Quick Answers - **What is this?** 3/4" Reduced Injection Check/Back Pressure Valve Assembly by watts - **How much does it cost?** £435.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/144502505-3-4-reduced-injection-check-back-pressure-valve-assembly) ## Best For - watts enthusiasts ## Why This Product - Trusted watts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Secure:** Captured springs and replaceable check seats ensure reliable, safe operation - • **Robust Durability:** Lead-free bronze construction built to last under 175 PSI pressure - • **Smooth Flow Assurance:** Large body passages minimize pressure drop for optimal performance - • **Effortless Maintenance:** Single access cover & modular check design for quick, in-line repairs - • **Health-First Protection:** Prevents backflow contamination, meeting national plumbing codes ## Overview The 3/4" Reduced Injection Check/Back Pressure Valve Assembly by Watts features a lead-free bronze body with NPT threaded connections, quarter-turn ball valve shutoffs, and a modular design for easy maintenance. Engineered to prevent backflow contamination in potable water systems, it supports up to 175 PSI and complies with national plumbing standards, making it an essential safeguard for professional-grade plumbing installations. ## Description This 3/4 inch lead free reduced pressure zone assembly is designed to prevent the flow of polluted water from entering the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards and for contaminants at the service line entrance. This assembly consists of a lead free bronze body, NPT end connections, quarter turn ball valve shutoffs with tee handles, top mounted test cocks, two in-line independent check valves, captured springs, and replaceable check seats with an internal relief valve for reduced space requirements. ## Features - Durable, lead free bronze body construction. - NPT inlet and outlet connections. - Quarter turn full port resilient seated ball valve shutoffs. - Single access cover and modular check construction for the ease of maintenance. - Large body passages provide a low pressure drop.Captured springs for safe maintenance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CL4H8QW | | Best Sellers Rank | #101,837 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #227 in Check Valves | | Brand Name | Watts | | Connector Type | Threaded | | Customer Reviews | 4.3 4.3 out of 5 stars (60) | | Exterior Finish | Bronze | | Global Trade Identification Number | 00098268705553 | | Included Components | Reduced Pressure Assembly Valve | | Inlet Connection Size | 0.75 Inches | | Inlet Connection Type | National Pipe Tapered | | Item Dimensions | 4 x 4 x 6 inches | | Item Type Name | Injection Check/Back Pressure | | Manufacturer | Watts | | Manufacturer Part Number | LF009M3-QT | | Material Type | Bronze | | Maximum Pressure | 175 Pound per Square Inch | | Model Number | LF009M3-QT 3/4 R | | Number of Ports | 3 | | Outlet Connection Size | 3/4 Inches | | Outlet Connection Type | NPT | | Size | 3/4 | | Thread Size | 3/4 inches | | Thread Type | NPT | | UPC | 098268705553 | | Unit Count | 1.0 Count | | Valve Type | Ball Valve | ## Product Details - **Brand:** Watts - **Exterior Finish:** Bronze - **Inlet Connection Size:** 0.75 Inches - **Inlet Connection Type:** National Pipe Tapered - **Item dimensions L x W x H:** 4 x 4 x 6 inches - **Material:** Bronze - **Maximum Operating Pressure:** 175 Pound per Square Inch - **Number of Ports:** 3 - **Outlet Connection Size:** 3/4 Inches - **Outlet Connection Type:** NPT ## Images ![3/4" Reduced Injection Check/Back Pressure Valve Assembly - Image 1](https://m.media-amazon.com/images/I/51-Kii88DjL.jpg) --- ## 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.co.uk/products/144502505-3-4-reduced-injection-check-back-pressure-valve-assembly](https://www.desertcart.co.uk/products/144502505-3-4-reduced-injection-check-back-pressure-valve-assembly) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-30*