Feature: 1. Backflow Prevention: Good thermal performance, strong chemical stability, non-toxic and tasteless, can prevent gas or liquid backflow. 2. Strong pressure load capacity: The one-way valve has sufficient load capacity and rigidity to meet the actual use requirements within its appropriate range. 3. Corrosion resistance: good ozone resistance, high temperature resistance and corrosion resistance, used in aquariums, food and beverage, chemical industry. 4. Perfect replacement: This one-way check valve is easy to replace the broken check valve, perfect replacement, stable performance. 5. PP material: The one-way check valve is made of high-quality PP material, wear-resistant and durable, and can be used for a long time. Specification: Item Type: Aquarium Check Valve Material: PP Function: Connect the pipe to prevent gas or liquid backflow Scope of application: Aquarium, Food and beverage, Iatric equipment, Chemical industry Package List: 12pcs Aquarium Check Valves