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 # 80098 features a female luer lock control port, a male luer lock outlet and an inlet that is 0.172 inch - 0.150 inch ID x 0.300 - 0.317 inch OD. Made of polycarbonate and silicone, this dual check valve has a 3 psi cracking pressure, enables injection and aspiration from separate ports of a single connector and is ideal for applications that require mixing and continuous filling of two substances. 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.