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 # 85057 features a tubing port inlet that fits a 0.120 inch ID x 0.160 inch OD tube with a male luer lock outlet. Made of MABS, SAN and silicone, this in-line check valve has a low 0.28 psi cracking pressure and 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 ideal for testing.