Eshopps Auto Top-Off ATO System 2.5gal

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There is no need to worry about water evaporation anymore now that the Eshopps’ new ATO Small Reservoir Tank is here. The ATO Small is a reservoir tank that can hold up to 2 gallon of water with a shut-off valve attached on the unit. It helps to maintain the water level in sumps.



  • Reservoir Tank
  • Holds Up to 2g
  • With Shut-off Valve
  • can also be used to add calcium / buffer / phyto plankton, etc.  via a slow drip method!


Item # Dimensions Tank Usage
15744 10"x5"x12" 10-40g