10Pcs Aquarium Fish Tank Air Pump Check Valve One Way Non-Return Valve Fish Tank Aquarium Water Air Pump
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Note: The side with OUT is for air outlet, and the other side is for air inlet.
The function of the one-way valve prevents the backflow of water from damaging the front-end air pump or other product equipment. After the stop valve is added, the air pump can be placed above or below the water surface to prevent the danger of water backflow when the air pump stops working.
The total length is 36mm, the diameter of the middle circle is 8mm, both ends: inner diameter 3mm, outer diameter 4mm
Suitable for common trachea (with an inner diameter of 4mm)
10 x Air Pump Check Valve
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