General description These CSPARKV Inline One Way Check Valves come in a set of three sizes: 6mm, 8mm, and 10mm, allowing you to choose the right fit for your specific needs. Designed to prevent backflow, these valves are ideal for various applications including marine, automotive, caravan/RV, and agricultural use. Technical specifications Sizes: 6mm, 8mm, 10mm Material: Aluminum Installation Easy to install and replace Usage Suitable for gasoline, water lines, biodiesel, coolant, etc. Ideal for water pressure pumps and galley pumps that are not self-priming Other information Arrow marked on the valve indicates fluid flow direction