--- product_id: 475521842 title: "Feelers 1/2\" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack" brand: "feelers" price: "€ 12.69" currency: EUR in_stock: true reviews_count: 13 category: "Feelers" url: https://www.desertcart.fr/products/475521842-feelers-1-2-one-way-inline-check-valve-non-return store_origin: FR region: France --- # 1/2 inch barbed connection for leak-proof fit Operates reliably from 25°C to 60°C High-grade PVDF body for chemical resistance Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack **Brand:** feelers **Price:** € 12.69 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your system’s efficiency with the valve that never lets you down! ## Quick Answers - **What is this?** Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack by feelers - **How much does it cost?** € 12.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/475521842-feelers-1-2-one-way-inline-check-valve-non-return) ## Best For - feelers enthusiasts ## Why This Product - Trusted feelers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Versatile:** Slim 43mm length fits tight spaces without compromising performance in fluid and pneumatic systems. - • **Precision Flow Control:** One-way inline design ensures zero backflow, protecting pumps and compressors from damage. - • **Effortless Installation:** Clear flow direction markings and secure 1/2 inch barbed ports make setup quick and foolproof. - • **Broad Application Spectrum:** Ideal for water treatment, automotive, medical, and household systems—engineered for professionals and DIYers alike. - • **Unmatched Chemical Resistance:** Crafted from premium PVDF and Viton diaphragm to withstand corrosive environments and ozone exposure. ## Overview The Feelers 1/2" One Way Inline Check Valve is a durable, chemically resistant valve designed for reliable one-directional flow control in air, water, and gas systems. Featuring a high-grade PVDF body and Viton diaphragm, it offers excellent sealing and corrosion resistance. Its compact size and 1/2 inch barbed connections ensure easy installation in tight spaces, making it perfect for professional and DIY applications across automotive, medical, and industrial environments. ## Description 1.The pipe port designs a pagoda card slot, non-slip, good airtightness, the port outer diameter is available in 10 sizes, suitable for 3/16“ to 1-1/2" inner hole hose to connect, user-friendly design, easy to use.2.Self-contained gas flow direction signs on the valve body for convenient installation. Avoid repeated installation and debugging work.3.Under 25 Degrees Celsius ~ 135 Degrees Celsius environment works. Reliable quality, no need to worry about high temperature damage in the cabin.4.Used in automotive system to stop backflow of gases or liquids in the piping. One-way valves are commonly used in brake boosters - air conditioning damper ducts - exhaust valve ducts and wiper sprinkler ducts on automobiles. The one-way valve is widely used and can be reasonably used according to individual needs. Review: Not suitable for 1/5 hp spa applications - Not able to use in my hot-tub ozone intake. The suction needed to overcome the spring force of this directional valve was more than my system could provide. This valve wouldn’t allow ozonated air to pass. My spa uses a small 1/5 hp circulation pump that has very little suction. This one-way valve would not flow. It took all my breath to operate this valve. Valve appears to be good quality. Just not good for my application. I kept the valves but if I had know there suction requirements, I would not have purchased them. Review: Works for a soap pump. - This works well for a soap pump line. It keeps the line primed and ready. ## Features - Crafted from high-grade PVDF for the valve body and equipped with a viton diaphragm, this one-way check valve offers reliable sealing performance and long service life. The material combination provides excellent resistance to ozone and a wide range of corrosive chemicals, making it suitable for demanding environments. - Designed for both fluid and pneumatic systems, this 1/2 inch inline check valve directs flow in a single direction. It stops countercurrent liquids in fluid systems and blocks reverse flow of compressed air in pneumatic applications, helping to maintain system efficiency and protect pumps, compressors, and other connected components. - Featuring a 1/2 inch barbed connection, this valve fits 1/2 inch hose inner diameter for a secure, leak-resistant fit. The compact total length of 43mm (1.69 inches) allows for easy installation in tight spaces without compromising performance. - Built with strong resistance to acids, alkalis, and salt corrosion, this PVDF check valve performs consistently across a temperature range of 25°C to 60°C (77°F to 140°F). Its durable construction ensures dependable operation in a variety of liquid and gas applications. - Suitable for water treatment, air purification, automotive components, machinery, medical equipment, and household appliances, this one-way check valve delivers reliable performance across a broad range of applications. Ideal for both professional installations and DIY projects. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B71FS1Z5 | | Best Sellers Rank | #64,070 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #129 in Check Valves | | Brand Name | Feelers | | Customer Reviews | 4.0 4.0 out of 5 stars (498) | | Exterior Finish | Rubber | | Inlet Connection Size | 0.5 Inches | | Inlet Connection Type | Barb | | Manufacturer | Feelers | | Material Type | Rubber | | Model Number | 756166997998 | | Number of Ports | 2 | | Outlet Connection Size | 0.5 Inches | | Outlet Connection Type | Barb | | Size | 0.5 Inch | | Specification Met | ASME B16.5, ASTM F1760, ASTM D3595 | | UPC | 756166997998 | | Unit Count | 2.0 Count | | Valve Type | Lift Check Valve | ## Product Details - **Brand:** Feelers - **Exterior Finish:** Rubber - **Inlet Connection Size:** 0.5 Inches - **Inlet Connection Type:** Barb - **Manufacturer:** Feelers - **Material:** Rubber - **Number of Ports:** 2 - **Outlet Connection Size:** 0.5 Inches - **Outlet Connection Type:** Barb - **Specification Met:** ASME B16.5, ASTM F1760, ASTM D3595 ## Images ![Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack - Image 1](https://m.media-amazon.com/images/I/41yZmrX0WoL.jpg) ![Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack - Image 2](https://m.media-amazon.com/images/I/411SQXSPh9S.jpg) ![Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack - Image 3](https://m.media-amazon.com/images/I/51cjTTBKb2L.jpg) ![Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack - Image 4](https://m.media-amazon.com/images/I/41w-GgEAivL.jpg) ![Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack - Image 5](https://m.media-amazon.com/images/I/51RJXE77z9L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Not suitable for 1/5 hp spa applications *by C***O on January 11, 2021* Not able to use in my hot-tub ozone intake. The suction needed to overcome the spring force of this directional valve was more than my system could provide. This valve wouldn’t allow ozonated air to pass. My spa uses a small 1/5 hp circulation pump that has very little suction. This one-way valve would not flow. It took all my breath to operate this valve. Valve appears to be good quality. Just not good for my application. I kept the valves but if I had know there suction requirements, I would not have purchased them. ### ⭐⭐⭐⭐⭐ Works for a soap pump. *by B***P on January 5, 2026* This works well for a soap pump line. It keeps the line primed and ready. ### ⭐⭐⭐⭐ Great price, not greatest quality *by K***S on June 27, 2022* The price is really good for the amount of them you receive but the the quality definitely shows for the price you pay. So if you want something more durable I recommend spending a few more but if you looking for a quick fix and quantity then this I definitely recommend:) ## Frequently Bought Together - Feelers 1/2" (12MM) One Way Inline Check Valve Non-Return One-Way Air Water Gas Check Valve Ozone Resistance PVDF, Pack of 2 2PCS - 3/4 inch Check Valve, Marine Boat Bilge Pump Hose in-line one way, Non Return --- ## 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.fr/products/475521842-feelers-1-2-one-way-inline-check-valve-non-return](https://www.desertcart.fr/products/475521842-feelers-1-2-one-way-inline-check-valve-non-return) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-04-24*