Best engineered and quietest peristaltic pump of its type on the market, we challenge you to find a quieter or more reliable peristaltic pump!

The most frequently asked questions concerning Top-Off Kit is "which pump works best?"  
 
While most ATOs are designed to work with just about any water pump, we suggest peristaltic pumps are the best choice when moving small amounts of water.
 
Quality peristaltic pumps, commonly known as dosing pumps, provide very consistent flow rates and require little maintenance.  Their anti-siphon characteristic is an important feature concerning evaporation replacement.  This allows you to place your top-off reservoir anywhere in relation to your tank, sump, or kalk stirrer.  With traditional water pumps, situating the top-off reservoir above the level of your sump could lead to siphoning and overflow unless specifically designed otherwise.  With a peristaltic pump, you get a precise amount of water delivered exactly where you want it, and not a drop more.  This pump is capable of delivering water at up to 20 feet of head pressure.  
 
That's several stories up or down, and hundreds of feet horizontally.  No need to have your top-off reservoir under your tank.  You can keep it out in the garage on the other side of the house!

Read more about choosing the correct pump for ATO usage here.
 
Technical Data:
Pump box dimensions: 4" tall x 4" wide x 1.75" deep 
Input power: AC 240v
Flow rate: 25mL/min (.4gph)
For external use only (not a submersible pump)
Input/Output fittings are 1/4" pushlock for standard RO/DI tubing
Warranty: 1 year