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5pcs/set Air Pump Check Valve One Way Non-Return Valve Fish Tank Aquarium Water Air Pump
Check valve
One-way check valve
Fish tank accessories
Oxygen pipe check valve
Aquarium one-way valve
Aquarium stop valve
Oxygen pump accessories
Feature:
100% Brand new and high quality.
To prevent water backflow to damage the front end of the pump or other products and equipment.
After the addition of the stop valve, the pump can be placed above or below the surface of the water to prevent the risk of
Water backflow when the pump is shut off.
Each outlet needs to connect a stop valve, two-headed pump needs two stop valves, and so on.
Description
Material: Plastic
Color: Blue
Overall length: 36mm / 1.42in, the diameter of the middle circle: 8mm/0.31in
Two ends: inner diameter: 3mm/0.12in, outer diameter: 4mm/0.16in
Suitable for common air pipe(innner diameter approx. 4mm/0.16in)
Note: The OUT surface is air outlset, and the other side is air inlet.