Aqua One Check Check Valve are simple devices used in airline tubing to prevent water from running backwards down an air tube and flooding the room. Often when beginners buy a air pump, tubing, air stone, etc. they negligent to fit a check valve. When an air pump is operating normally the pressure of the air pushes the water out of the tube. However, if the tubing became detached from the air pump end of the air pump stopped working, what can happen is that the air is forced out of the tubing by water pressure and if the end of the tube connected to the pump is below the level of the air stone then a siphon action can occur and the water ends up pouring out of the tank! The check valve only allows air to flow in one direction and therefore prevents water from getting too far down the tube. You cut and fit the valve near the top of the aquarium.


  • 1x Aqua One Check Valve
  • Quick & Easy Setup
  • Brand: Aqua One
  • Product Code: 1021
  • Product: Check Valve
  • Material: Plastic/rubber
  • Qty: 1 Pack
  • Size: 52mm x 10mm
  • Fits: Standard 4mm Air Line
SKU 10121
Barcode # 9325136110319
Brand Aqua One
Shipping Weight 0.0100kg
Shipping Width 0.010m
Shipping Height 0.100m
Shipping Length 0.010m
Shipping Cubic 0.000010000m3
Unit Of Measure ea
Assembled Length 0.060m
Assembled Height 0.140m
Assembled Width 0.080m

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