Description: 10mm One-way Non-return Valve Aluminum Universal Non Return Inline Check Valve. Specification: Construction:Aluminium; Valve Opening (Cracking) Pressure:1.5psi; Operating Pressure Range:1.5psi to 65psi; Max backpressure:72psi; Overall Length:50mm; Cylinder Diameter:15mm; Cylinder Length:13mm; Quantity:1pc. Features: 1) The life of Aluminum head for using is longer than plastic heads. 2) Arrow marked on valve, showing fluid flow direction, Prevents fuel from returning back to the tank and keeps it in the line. 3) Also great for water pressure pumps; galley pumps which are not self-priming. 4) Professional grade non-return valve - Ideal for marine, automotive, caravans/RV, and agriculture. 5) Stable characteristics, high reliability. 6) Easy installation and replacement. 7) Fitment: Universal, Suitable for use with petrol, diesel, biodiesel, water, coolant, oil, air/vacuum. Package Included: 1pc x Non-Return Valve. Notice: 1. Please allow a bit error due to manual measurement. please make sure you do not mind before you bid. 2. The color may have different as the difference display, pls understand. 3. There Are No Instructions Included In This Kit.Professional Installation Is Highly Recommended