--- product_id: 551635860 title: "Feelers 1/2\" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack" brand: "feelers" price: "179 zł" currency: PLN in_stock: true reviews_count: 5 category: "Feelers" url: https://www.desertcart.pl/products/551635860-feelers-1-2-one-way-inline-check-valve-non-return store_origin: PL region: Poland --- # 1/2" barb fits standard hoses PVDF material for chemical resistance Operates from 25°C to 135°C Feelers 1/2" One Way Inline Check Valve, Non-Return Valve for Air, Water, Gas, 2-Pack **Brand:** feelers **Price:** 179 zł **Availability:** ✅ In Stock ## Summary > 🔧 Stop the Backflow, Start the Flow — Effortless Control, Maximum Reliability! ## 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?** 179 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/551635860-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 - • **Wide Temperature Tolerance:** Reliable performance from 25°C up to 135°C, perfect for demanding environments. - • **Corrosion-Resistant PVDF Build:** Engineered to withstand acids, alkalis, and salts for long-lasting durability. - • **Precision One-Way Flow Control:** Prevents backflow in air, water, and gas systems with clear directional indicators. - • **Universal 1/2" Barb Connection:** Seamlessly fits standard 1/2" hose IDs for easy, secure installation. - • **Versatile Industrial & Home Use:** Ideal for automotive, water treatment, medical, and household applications—stay ahead with trusted flow control. ## Overview The Feelers 1/2" One Way Inline Check Valve is a high-performance, PVDF-constructed valve designed to prevent reverse flow in fluid and pneumatic systems. Featuring a silicon rubber diaphragm and a secure 1/2" barb connection, it offers strong resistance to corrosive substances and operates reliably between 25°C and 135°C. Perfect for automotive, industrial, and household applications, this pack of two valves ensures efficient, maintenance-free flow control. ## 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: Buen producto - Salieron buenas las válvulas pero caras Review: Rigged - High quality and very reliable over standard factory check valves. ## Features - 【Material】The one way check valves are made of PVDF, and the Diaphragm material is silicon rubber. - 【Function】 These 1/2 Inch check valves are applicable for fluid systems to stop countercurrent liquids, or for pneumatic systems to prevent reverse flow of compressed air. - 【Size】Diameter: 1/2"barb, can fit 1/2" hose ID; Total length: 43mm/1.69 inch - 【Performance】Strong Resistance to acid, alkali, salt corrosion ability, can be used for different types of liquid.Normal performance under 25 ℃ to 60 ℃. - 【Wide Application】Widely used in water treatment, air purification, automotive parts, machinery industry, medical equipment, household appliances and other fields. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B71FS1Z5 | | Best Sellers Rank | #141,808 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #89 in Check Valves | | Brand | Feelers | | Brand Name | Feelers | | Connector Type | Barb | | Customer Reviews | 4.0 out of 5 stars 498 Reviews | | Exterior Finish | Rubber | | Inlet Connection Size | 0.5 Inches | | Inlet Connection Type | Barb | | Manufacturer | Feelers | | Material | Rubber | | Material Type | Rubber | | Model Number | 756166997998 | | Number of Items | 2 | | Number of Packs | 2 | | Number of Pieces | 2 | | 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 | Check Valve | ## Product Details - **Material:** PVDF - **Brand:** Feelers - **Exterior Finish:** Rubber - **Inlet Connection Size:** 0.5 Inches - **Inlet Connection Type:** Barb - **Outlet Connection Type:** Barb - **Number of Ports:** 2 - **Outlet Connection Size:** 0.5 Inches - **Specification Met:** ASME B16.5, ASTM F1760, ASTM D3595 - **Valve Type:** Check Valve ## 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 ### ⭐⭐⭐ Buen producto *by B***O on 3 February 2024* Salieron buenas las válvulas pero caras ### ⭐⭐⭐⭐⭐ Rigged *by M***L on 3 February 2026* High quality and very reliable over standard factory check valves. ### ⭐⭐⭐⭐⭐ Works for windshield washer fluid. *by J***Y on 8 July 2026* Worked well for a replacement for my windshield washer fluid line in a Ford Flex. ## 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.pl/products/551635860-feelers-1-2-one-way-inline-check-valve-non-return](https://www.desertcart.pl/products/551635860-feelers-1-2-one-way-inline-check-valve-non-return) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-08-12*