Vibrant -8AN Female to Male Inline Check ValveVibrant Performance Ball Style Inline One Way Check Valves are lightweight and constructed entirely from 6061 Aluminum alloy. Our Ball Style Inline One Way Check Valves are designed to prevent flow back of all varieties of fuel, oil or coolant. Vibrant Check Valves will stand up to the most rigorous operating environments and are capable of handling temperatures ranging from 30deg F to 400deg F and operating pressures up to 300psi. All Vibrant