--- product_id: 218756470 title: "Quickun 5/16\" One Way Inline Check Valve, Non Return Hose Barb, Ozone Resistance Plastic Valve for Fuel Oil Water Gas Pump Air, 2 Pcs" brand: "quickun" price: "£8.59" currency: GBP in_stock: true reviews_count: 13 category: "Quickun" url: https://www.desertcart.co.uk/products/218756470-quickun-5-16-one-way-inline-check-valve-non-return store_origin: GB region: United Kingdom --- # Unidirectional flow control Tool-free, easy installation Corrosion-resistant PVDF plastic Quickun 5/16" One Way Inline Check Valve, Non Return Hose Barb, Ozone Resistance Plastic Valve for Fuel Oil Water Gas Pump Air, 2 Pcs **Brand:** quickun **Price:** £8.59 **Availability:** ✅ In Stock ## Summary > 🔧 Keep flow flawless, protect your gear, and never look back! ## Quick Answers - **What is this?** Quickun 5/16" One Way Inline Check Valve, Non Return Hose Barb, Ozone Resistance Plastic Valve for Fuel Oil Water Gas Pump Air, 2 Pcs by quickun - **How much does it cost?** £8.59 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/218756470-quickun-5-16-one-way-inline-check-valve-non-return) ## Best For - quickun enthusiasts ## Why This Product - Trusted quickun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Setup ⚙️:** No tools needed—install quickly and maintain effortlessly, saving you time and hassle. - • **Versatile Powerhouse 💧:** Perfect for fuel, water, gas, and air systems—industrial or commercial, it fits seamlessly into your workflow. - • **Flawless One-Way Flow 🔄:** Spring-loaded design guarantees zero backflow, protecting your pumps and systems from costly damage. - • **Built to Brave Chemicals 🛡️:** Crafted from high-grade PVDF plastic, engineered to resist acids, moisture, and ozone for unmatched durability. - • **Double the Value, Double the Confidence 🔗:** Two 5/16" valves included, ensuring you’re always ready for your next project or emergency fix. ## Overview The Quickun 5/16" One Way Inline Check Valve features a spring-loaded mechanism for reliable unidirectional flow, preventing backflow and pressure surges. Made from corrosion-resistant PVDF plastic, it withstands harsh chemicals and ozone exposure. Designed for easy, tool-free installation, this pack of two valves is ideal for industrial and commercial applications including fuel, water, gas, and air systems. ## Description Quickun 5/16" One Way Inline Check Valve, Non Return Hose Barb, Ozone Resistance Plastic Valve for Fuel Oil Water Gas Pump Air, 2 Pcs: desertcart.com: Industrial & Scientific Review: This product works great - These made the flow of the soap prrfect! Review: DO get these. - These are the real deal and they really work in your automotive windshield washer lines. ## Features - 【One-Way Flow Control】Spring-loaded valve design ensures unidirectional flow, preventing backflow and pressure surges. Safeguards pumps, compressors, and hydraulic systems from damage caused by reverse pressure. - 【Corrosion-Resistant Construction】High-grade plastic body, made from PVDF, offering durability against chemicals, acids, and moisture. - 【Size and Number】5/16", 2pcs - 【Easy Installation and Long-Term Reliability】Tool-free assembly, low maintenance. - 【Wide Applications】Industrial use for hydraulic systems, pneumatic tools and automation equipment. Commercial use for water pumps, irrigation systems, and pool filters. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B087PDGZ9F | | Best Sellers Rank | #12,976 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Check Valves | | Brand Name | Quickun | | Connector Type | Slip | | Customer Reviews | 4.1 4.1 out of 5 stars (994) | | Exterior Finish | Plastic,Rubber | | Inlet Connection Type | Barb | | Manufacturer | Quickun | | Material Type | Plastic, Rubber | | Model Number | 2.00 | | Number of Pieces | 2 | | Number of Ports | 2 | | Outlet Connection Type | Barb | | Size | 5/16 Inch | | Specification Met | ASME B16.5 | | Thread Size | 5/16" | | Thread Type | barbed | | Unit Count | 2.0 Count | | Valve Type | Check Valve | ## Product Details - **Brand:** Quickun - **Exterior Finish:** Plastic,Rubber - **Inlet Connection Type:** Barb - **Manufacturer:** Quickun - **Material:** Plastic, Rubber - **Number of Ports:** 2 - **Outlet Connection Type:** Barb - **Specification Met:** ASME B16.5 ## Images ![Quickun 5/16" One Way Inline Check Valve, Non Return Hose Barb, Ozone Resistance Plastic Valve for Fuel Oil Water Gas Pump Air, 2 Pcs - Image 1](https://m.media-amazon.com/images/I/41ujscW4RnL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ This product works great *by S***A on March 13, 2026* These made the flow of the soap prrfect! ### ⭐⭐⭐⭐⭐ DO get these. *by T***R on March 1, 2026* These are the real deal and they really work in your automotive windshield washer lines. ### ⭐⭐⭐⭐ ~2 inWC cracking pressure *by E***C on March 11, 2026* Haven’t gotten to use it in my system yet, but I tested the cracking pressure and it comes in at just over 2 inches of water column. I did have to push the inside open first with a chopstick to unseal it though. They should work for what I need. Will update if they don’t perform well. --- ## 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/218756470-quickun-5-16-one-way-inline-check-valve-non-return](https://www.desertcart.co.uk/products/218756470-quickun-5-16-one-way-inline-check-valve-non-return) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-30*