1/2" Non Return One Way Inline Check Valve Fitting Aluminum Black Size: 1/2 One-way spring / shuttle type check valve featuring a 1/2 inch barb inlet and outlet, with a housing length of approximately 36.3mm (excluding the inlet/outlet barbs). Opening Pressure: 1.5 PSI / Maximum Pressure: 1,500 PSI. Constructed from lightweight 6061-T6 aluminum; anodized finish for enhanced strength, durability, and corrosion resistance. These check valves are engineered to permit flow in a single direction and block reverse flow. They can serve as a non-return valve within a fuel system or function as a one-way breather valve on fuel tanks. Suitable for use with fuels, oil, coolant, air, diesel, methanol, ethanol, and E85
