Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part # 80185 features a female luer lock inlet and male luer lock outlet with a 1.5 - 5 psi cracking pressure. Made of polycarbonate and silicone, this in-line check valve is ideal for infusion, drainage and irrigation applications. Qosina offers a variety of flow rates, materials, cracking pressure and back pressure options. Check Valve sample kits are also available which are perfect for testing.