1、Replacement: This one way check valve can be used to replace the broken check valve and fit perfectly, to prevent the backflow of gas or liquid 2、Strong Pressure Resistance: The stop check valve has sufficient pressure bearing capacity and rigidity to meet actual use requirements within appropriate range 3、High Performance: The check valve has good thermal performance, strong chemical stability, non toxic and odorless 4、Excellent PP Material: The stop check valve is made of high quality PP plastic material, which is wear resistant and durable 5、Application: This one way check valve is widely used for fish tank, food and beverage, medicine equipment, chemical industry, etc. 10 x Check Valve Item Type: Check ValveMaterial: PPFunction: Connect the hose to prevent the backflow of gas or liquidScope of Application: Fish tank, food and beverage, medicine equipment, chemical industrySize: Approx.4mm/ 0.2in