Features Good Replacement This one way check valve can be used to replace the defective check valve to prevent the backflow of gas or liquid, with stable performance and strong practicality. PP Material The one way ball valve is made of PP material, which has sufficient pressure bearing capacity and rigidity, exquisite workmanship, smooth and delicate appearance, durability and long service life. Strong Chemical Stability:The spring check valve has good thermal performance, strong chemical stability, non-toxic and tasteless, 100% new and high quality, reliable and safe. High Performance The hose check valve has good ozone resistance, high temperature resistance and corrosion resistance, and I believe it can make your life more convenient. Wide application: check valves are used in fish tanks, aquariums, food and beverages, medical equipment and the chemical industry with a variety of functions and obvious effects. Specification: Item Type:One-way 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 Package list: 10 x disposable check valves Package List 10 x One Way Check Valve