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 # 85059 features a white tubing port inlet and clear tubing port outlet and fits a 0.118 inch ID x 0.161 inch OD tubing. Made of MABS and silicone, this in-line check valve has a low 0.0.087 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.