Features PP Material The one-way check valve is made of high quality PP material, which is wear-resistant and durable, and can be used for a long time. Backflow prevention: good thermal performance, strong chemical stability, non-toxic and tasteless, can prevent the backflow of gas or liquid. Corrosion resistance: good ozone resistance, high temperature resistance and corrosion resistance, used in aquariums, food and beverages, as well as in the chemical industry. HIGH PRESSURE LOADING The one-way valve has enough pressure bearing capacity and rigidity to meet the actual application requirements in the right range. PERFECT REPLACEMENT This one way check valve is an easy replacement of the defective check valve, perfect replacement, stable performance. Specification: Item Type:Aquarium Check Valve Material: PP. Function: connect the hose to prevent the backflow of gas or liquid Scope of application: aquariums, food and beverages, laboratory equipment, chemical industry Package list: 12 x Aquarium Check Valve Package List 12 x Aquarium Check Valve