--- product_id: 349122264 title: "EZ-FLO 20423LF Brass Swing Check Valve" brand: "eastman" price: "£28.84" currency: GBP in_stock: true reviews_count: 5 category: "Eastman" url: https://www.desertcart.co.uk/products/349122264-ez-flo-20423lf-brass-swing-check-valve store_origin: GB region: United Kingdom --- # 200 PSI max pressure 3/4 inch IPS connection Lead-free safety EZ-FLO 20423LF Brass Swing Check Valve **Brand:** eastman **Price:** £28.84 **Availability:** ✅ In Stock ## Summary > 🚰 Keep your water flowing forward—no backflow, no worries! ## Quick Answers - **What is this?** EZ-FLO 20423LF Brass Swing Check Valve by eastman - **How much does it cost?** £28.84 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/349122264-ez-flo-20423lf-brass-swing-check-valve) ## Best For - eastman enthusiasts ## Why This Product - Trusted eastman brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Premium brass construction ensures durability and long-term reliability under pressure. - • **Health-First Design:** Lead-free and CSA/NSF certified for safe use in all potable water applications. - • **Effortless Installation:** Standard 3/4 inch IPS flange connection makes setup quick and secure—no hassle, no fuss. - • **Versatile Pressure Handling:** Operates seamlessly up to 200 PSI, perfect for wells, boilers, and potable water setups. - • **Precision Backflow Protection:** Engineered swing check mechanism prevents contamination and safeguards your water system. ## Overview The EZ-FLO 20423LF Brass Swing Check Valve is a robust, lead-free valve designed to prevent backflow in potable water systems. Featuring a durable brass body, a 3/4 inch IPS flange connection, and a maximum operating pressure of 200 PSI, it ensures reliable, contamination-free water flow for wells, boilers, and more. Certified to meet CSA and NSF standards, this valve combines safety, longevity, and easy installation for professional-grade plumbing solutions. ## Description Introducing the Eastman Swing Check Valve, a masterpiece of engineering designed to provide unparalleled reliability for your home water systems. Crafted from robust and durable brass, this check valve ensures a long-lasting solution to prevent the undesirable backflow of fluids into your water supply. This valve is essential for maintaining the integrity of well and boiler systems, safeguarding your potable water from contamination. With a solid 3/4 inch IPS connection, this straight pattern check valve boasts a working pressure of 125 PSI to 200 Water, Oil, and Gas (WOG), offering peace of mind through its exceptional product safety standards. The Eastman Swing Check Valve is lead-free, meeting all regulatory requirements for safe water supply installations. Review: Only lets water go one direction, so it does what it should. Review: These are very good quality. Have not had any problems. Installed in a Dental Vacuum System over a year ago and no problems since. ## Features - EASTMAN BRASS SWING CHECK VALVE: The Eastman swing check valve features a mechanism specifically engineered as a backflow preventer, protecting your water systems from contamination and damage - DURABLE: This Swing Check Valve is crafted from high-quality brass, ensuring longevity and reliability as a backflow preventer in water supply systems - VERSATILE: With a working pressure of 125 PSI to 200 WOG, this check valve is perfect for a variety of uses including wells, boiler systems, and potable water installations - EASY TO INSTALL: Designed with a 3/4 inch IPS connection, this swing check valve ensures a secure and straightforward installation process - SAFETY: Lead-free and suitable for all potable water supply installations, this valve prioritizes your health and safety ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00GZ3H5JA | | Brand | Eastman | | Exterior Finish | Brass | | Generic Name | Swing Check Valve, Brass | | Global Trade Identification Number | 00091712423386 | | Included Components | valve | | Inlet Connection Size | 0.75 Inches | | Inlet Connection Type | Flange | | Item Dimensions LxWxH | 6 x 6 x 5.6 Centimeters | | Item Weight | 245 g | | Item dimensions L x W x H | 6 x 6 x 5.6 Centimeters | | Item model number | 20423LF | | Manufacturer | EZ-FLO | | Material | Brass | | Maximum Operating Pressure | 200 Pound per Square Inch | | Net Quantity | 1.0 Count | | Number of Ports | 1 | | Outlet Connection Size | 0.75 Inches | | Outlet Connection Type | Flange | | Product Dimensions | 6.05 x 6.05 x 5.56 cm; 244.94 g | | Specification Met | CSA, NSF | | UPC | 091712423386 | ## Product Details - **Brand:** Eastman - **Exterior Finish:** Brass - **Inlet Connection Size:** 0.75 Inches - **Inlet Connection Type:** Flange - **Item dimensions L x W x H:** 6 x 6 x 5.6 Centimeters - **Material:** Brass - **Maximum Operating Pressure:** 200 Pound per Square Inch - **Number of Ports:** 1 - **Outlet Connection Size:** 0.75 Inches - **Outlet Connection Type:** Flange ## Images ![EZ-FLO 20423LF Brass Swing Check Valve - Image 1](https://m.media-amazon.com/images/I/61AKWHJwWVL.jpg) ## Questions & Answers **Q: Is this for 1 1/2" pipe or is it for a quantity of 1 for a 1/2" pipe?** A: 1-1/2 inch IPS, not a quantity of one for 1/2 inch. **Q: Can this be used with hose thread?** A: These are pipe thread which is slightly different from hose thread. However there are hose adapters out there to make the transition **Q: Does the swing valve have a spring too or just free floating? Needed for lake pump but would be horizontal, so would it still work?** A: The swing check valve does have a spring, but should not be an issue for the application you have described. **Q: This says it is threaded as fip...is this compatible with male npt threads?** A: Yes, FIP and NPT are interchangeable. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***. on 18 January 2026* Only lets water go one direction, so it does what it should. ### ⭐⭐⭐⭐⭐ Review *by J***T on 1 April 2025* These are very good quality. Have not had any problems. Installed in a Dental Vacuum System over a year ago and no problems since. ### ⭐⭐⭐⭐⭐ Review *by A***R on 20 March 2025* Swings as it should ## Frequently Bought Together - Eastman Brass Swing Check Valve, 3/4 Inch IPS, Brass Plumbing Fitting, 20423LF - Eastman 3/4 Inch IPS Heavy Duty Full Port Ball Valve, Brass Plumbing Fitting, 20047LF - EZ-FLO Brass In-Line Check Valve, 3/4 Inch IPS, Stainless Steel Spring, 20403LF --- ## 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/349122264-ez-flo-20423lf-brass-swing-check-valve](https://www.desertcart.co.uk/products/349122264-ez-flo-20423lf-brass-swing-check-valve) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-04*