【High quality material】 Our water stop valve is made of high quality PP material, durable and long life. 【Easy to use】 When using a pump to Air and our check valve can be used to prevent water from entering the pump from the machine, this anti-ozone valve is very easy to handle. 【Protective valve】 when the Oxygen filling pump ceases to operate suddenly, due to the internal and external pressure difference, the flow of water will flow backwards and will damage the oxygen filling pump. Our water stop valve can prevent this situation. 【Use mainly】 When the position of the air or water at the other end of the pump is higher than that located. In front of the pump, our water stop valve can prevent the reflux of the water 【Avoid reflux】 When the air pump is cut off and stopped, there is no risk of reflux of water. It is a small protective cover for air pumps. Specification: Condition: 100% brand new Element type: Non-return valve Material: Pp Color: as the image shown Quantity: 10pcs
