There is no need to worry about water evaporation anymore with the new ATO units. The sharp and clean unit comes with a shut-off valve attached and can easily be used with our Float Valve to help maintain water level in sumps. The ATO Reservoir Tank features a durable 1/4” of thick acrylic construction featuring a clear acrylic window for visual monitoring of water levels.


  • ATO Small has two keyhole hangers for wall mounting
  • Holds Up to 2g


Item # Dimensions Tank Usage
15744 10x5x12 10-40g