Features Excellent PP Material The check valve is made of high quality PP plastic, wear-resistant and durable. Strong Pressure Resistance The stop check valve has sufficient load capacity and rigidity to meet the actual usage requirements within a suitable range. Application This one-way check valve is widely used for aquarium, food and beverage, medical equipment, chemical industry, etc. High Performance The check valve has good thermal performance, strong chemical stability, non-toxic and odorless. 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. Specification: Item Type: Check Valve Material: PP Function: Connect the hose to prevent the backflow of gas or liquid Scope of application: aquarium, food and beverage, medical equipment, chemical industry Size: approx. 4 mm/0.2 inches. Package list: 10 x Check Valves Package List 10 x Check Valve