--- product_id: 389155834 title: "EZ-FLO 20405LF Brass In-Line Check Valve" brand: "eastman" price: "$60.74" currency: USD in_stock: true reviews_count: 5 category: "Eastman" url: https://www.desertcart.us/products/389155834-ez-flo-20405lf-brass-in-line-check-valve store_origin: US region: United States of America --- # 5 PSI min to open, 200 PSI max pressure 1 in. IPS threaded inlet/outlet Solid brass body for durability EZ-FLO 20405LF Brass In-Line Check Valve **Brand:** eastman **Price:** $60.74 **Availability:** ✅ In Stock ## Summary > 🚰 Lock in flawless flow with EZ-FLO’s brass check valve—because your system deserves the best! ## Quick Answers - **What is this?** EZ-FLO 20405LF Brass In-Line Check Valve by eastman - **How much does it cost?** $60.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/389155834-ez-flo-20405lf-brass-in-line-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:** Solid brass construction paired with a stainless steel spring ensures longevity - • **Seamless Integration:** 1-inch IPS threaded connections fit standard plumbing effortlessly - • **Versatile Application:** Perfect for irrigation, pumps, and water lines—your go-to plumbing safeguard - • **Pressure-Ready Performance:** Opens at just 5 PSI and withstands up to 200 PSI working pressure - • **Maintenance-Free Reliability:** Engineered for smooth, hassle-free operation with zero upkeep ## Overview The EZ-FLO 20405LF Brass In-Line Check Valve is a compact, durable plumbing component designed to prevent backflow in water systems. Featuring 1-inch IPS threaded female iron pipe connections, a solid brass body, and a stainless steel spring, it operates reliably between 5 PSI and 200 PSI. Ideal for irrigation, pump, and water line applications, this valve offers maintenance-free performance and compatibility with standard plumbing setups. ## Description Simplify your plumbing projects with the Eastman in-line check valve. Constructed from durable brass, this valve is designed to help prevent the backflow of fluids in irrigation, water pump, and general plumbing systems. It features 1 inch IPS threaded connections on both ends, making it compatible with standard piping setups. The stainless steel spring opens with a minimum pressure of 5 PSI and supports a maximum working pressure of 200 PSI. Designed for maintenance-free use, this compact valve helps promote smooth and efficient water flow in residential or commercial systems. Review: Recommended but do NOT freeze them! - These work very well but do NOT freeze them or they will leak. Review: es un buen producto - Nosotros lo usamos regularmente y nos da buen resultado, tenemos mucho tiempo utilizando ## Features - IN-LINE CHECK VALVE: Designed to help prevent backflow of fluids in water supply lines and other plumbing systems - DESIGN: Features 1 in. IPS threaded inlet and outlet for compatibility with standard plumbing systems - DURABLE: Built with a solid brass body and stainless steel spring for long-lasting use - RATED PERFORMANCE: Minimum 5 PSI to open; rated for up to 200 PSI working pressure - APPLICATION: Suitable for irrigation, pump, or water line applications; designed for maintenance-free operation ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00GZ3H3JW | | Brand | Eastman | | Brand Name | Eastman | | Connector Type | Threaded | | Customer Reviews | 4.6 out of 5 stars 819 Reviews | | Exterior Finish | Brass, Stainless Steel | | Exterior finish | Brass , Stainless Steel | | Global Trade Identification Number | 00091712423355 | | Included Components | valve | | Inlet Connection Size | 1 Inches | | Inlet Connection Type | Female Iron Pipe | | Inlet connection size | 1 Inches | | Inlet connection type | Female Iron Pipe | | Item Dimensions | 18 x 36 x 38 millimeters | | Item Type Name | Brass In-Line Check Valve | | Item dimensions L x W x H | 18 x 36 x 38 millimeters | | Manufacturer | EZ-FLO | | Manufacturer Part Number | 20405LF | | Material | Brass | | Material Type | Brass | | Maximum Pressure | 200 Pound per Square Inch | | Model Number | 20405LF | | Number of Ports | 2 | | Outlet Connection Size | 1 Inches | | Outlet Connection Type | FIP | | Size | 1 in. | | Smart Home Compatibility | Not Smart Home Compatible | | Specification Met | NSF, ANSI | | Thread Type | FIP | | UPC | 091712423355 | | Unit Count | 1 Count | | Valve Type | check valve | ## Product Details - **Brand:** Eastman - **Exterior finish:** Brass, Stainless Steel - **Inlet connection size:** 0.5 Inches - **Item dimensions L x W x H:** 46 x 32 x 32 millimeters - **Material:** Brass ## Images ![EZ-FLO 20405LF Brass In-Line Check Valve - Image 1](https://m.media-amazon.com/images/I/61W5T8Lg1NL.jpg) ![EZ-FLO 20405LF Brass In-Line Check Valve - Image 2](https://m.media-amazon.com/images/I/61U2StTDy8L.jpg) ![EZ-FLO 20405LF Brass In-Line Check Valve - Image 3](https://m.media-amazon.com/images/I/61Qa3NfnAqL.jpg) ![EZ-FLO 20405LF Brass In-Line Check Valve - Image 4](https://m.media-amazon.com/images/I/61wWg-Jh8cL.jpg) ![EZ-FLO 20405LF Brass In-Line Check Valve - Image 5](https://m.media-amazon.com/images/I/61eRAXodlOL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Es para uso horizontal o vertical?** A: In-line check valves can be installed horizontally or vertically. **Q: What is the threading if i wanted to attach brass connectors to either side?** A: Thank you for your question on the Brass In-Line. The threading is 1/2" FIP. **Q: Will this work with oil?** A: Can't say for sure, but I would say it depends on things like whether the oil is clean and how hot the oil is. I would think that it would work with clean, ambient temperature oil, but that does not take into account what the seals are made of and what kind of oil you're talking about. Some oils will degrade the seals. Not much help, but something to think about. **Q: Max water temp and is the spring inside stainless steel?** A: In the industrial world, low temp is 180f or less, High temp is 181- Steam, so when someone says low temp, you can use this idem. I personally have used them on my boiler returns without a problem, just make sure you at 5ft of head for your circulator pump, ## Customer Reviews ### ⭐⭐⭐⭐⭐ Recommended but do NOT freeze them! *by J***T on 7 November 2025* These work very well but do NOT freeze them or they will leak. ### ⭐⭐⭐⭐⭐ es un buen producto *by A***O on 23 June 2025* Nosotros lo usamos regularmente y nos da buen resultado, tenemos mucho tiempo utilizando ### ⭐⭐⭐⭐⭐ Solid, Well-Made, and Works Exactly as Expected *by D***A on 5 December 2025* Solid, Well-Made, and Works Exactly as Expected This check valve is high quality and easy to install. The brass feels durable, the threading is clean, and it sealed perfectly with no leaks. Once installed, it did exactly what it’s supposed to do — prevented backflow and kept everything running smoothly in my RV’s water system. If you need a reliable in-line check valve, this one is definitely worth it. ## Frequently Bought Together - EZ-FLO Brass In-Line Check Valve, 1/2 Inch IPS, Stainless Steel Spring, 20401LF - 2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT --- ## 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.us/products/389155834-ez-flo-20405lf-brass-in-line-check-valve](https://www.desertcart.us/products/389155834-ez-flo-20405lf-brass-in-line-check-valve) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-10*