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🔧 Stop backflow like a pro — seamless, durable, and built to last!
The Feelers 1/2" One Way Inline Check Valve is a robust, corrosion-resistant valve made from PVDF and silicon rubber, designed to prevent reverse flow in air, water, and gas systems. With a secure pagoda card slot fitting and clear flow direction indicators, it fits 1/2" hoses and operates reliably between 25°C and 135°C. Widely used in automotive, industrial, and household applications, this 2-pack valve offers professional-grade performance and easy installation.































| ASIN | B0B71FS1Z5 |
| Best Sellers Rank | #187,112 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #115 in Check Valves |
| Brand Name | Feelers |
| Connector Type | Barb |
| Customer Reviews | 4.0 4.0 out of 5 stars (501) |
| Exterior Finish | Rubber |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | Barb |
| Manufacturer | Feelers |
| 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 |
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