Feature: 1. Good replacement: This one-way check valve can be used to replace the broken check valve to prevent gas or liquid backflow 2. PP material: The one-way stop valve is made of material PP, which has sufficient carrying capacity and rigidity, wear-resistant and durable 3. Strong chemical stability: the check valve has good thermal performance, strong chemical stability, non-toxic and odorless 4. High performance : the check valve has good ozone resistance, high temperature resistance and corrosion resistance 5. Wide application: the check valve is used for aquariums, food and beverage, equipment medical, chemical industry Specification: Item Type: One Way Check Valve Material: PP Function: Connect the pipe to prevent the backflow of gas or liquid Scope of application: aquarium, food and beverage, medical equipment, chemical industry Package list: 10 one-way check valves