Pack of 10 Disposable Plastic Check Valves for Water, Fuel, Gas, Liquid, and Air (4 mm)

Convenient Replacement: This disposable check valve makes it easy to replace damaged check valves and connects pipes to prevent the backflow of gas or liquid.Sufficient Rigidity: With sufficient pressure capacity and rigidity to meet actual usage needs within a reasonable range.Strong Stability: Good thermal performance, strong chemical stability, non-toxic and odorless, you can use it with confidence.Wide Range of Applications: The check valve can be used in aquariums, food and beverage processing, appliances, and the chemical industry; very practical.