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Innovative Marine Hydrofill - ATO Pump System

Product code: 2986

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Innovative Marine Hydrofill - ATO Pump SystemAutomate freshwater replenishment, and say farewell to heavy lifting, unstable water parameters, and the need to frequently watch your water line.Topping off evaporated water for our aquariums is a tedious but essential task that every hobbyist encounters to maintain stable specific gravity & salinity levels.

Innovative Marine Hydrofill - ATO Pump System.

Pair your auto top off with the industry's first low voltage air lift pump specifically designed for ATO controllers.  The HydroFill ATO Pump System eliminates the guess work, and comes complete with a lift pump, return pipe and acrylic mounting bracket, 10 feet of silicone tubing, 3 hose clamps, and an optional hanging mount.

Engineered for high performance, this external positive displacement diaphragm pump, outputs up to 15 gallons per hour and max 5 feet of head. This self-priming pump is equipped with a built-in check valve to safeguard against back siphoning.

The HydroFill diaphragm pump is the smart alternative when compared to submersible pumps, diaphragm pumps offer the benefit of safely running dry and are thermally protected against heat build-up.

Versatile design offers 3 options for pump placement: hang-on, cabinet mount, or simply place on noise dampening rubber feet.



  • 2 Year Warranty
  • Positive Displacement
  • Diaphragm Pump Method
  • Self-Priming
  • Built-in Check valve
  • Dry Run Protection
  • Thermally Protected
  • Low Voltage
  • 3/8" barb fitting
  • Up to 15 Gallons per Hour
  • Pump mounting bracket


  • 10 feet of silicone tubing
  • (3) hose clamps
  • Acrylic mounting bracket
  • Return pipe

Item #

Dims Pump

Dims Return Pipe with Acrylic Bracket


Power Consumption



3.38" x 2.52" x 5.59"

1.49" x 2.75" x 6.89"



Up to 15 GPH


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