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AquaticLife® 100 GPD 4-Stage Reverse Osmosis/Deionization System
AquaticLife® 100 GPD 4-Stage Reverse Osmosis/Deionization System
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*RO/DI unit filters tap water to produce purified water suitable for aquarium use
*100 GPD unit ensures a steady supply for large or multiple aquariums
*Removes harmful substances such as heavy metal ions and total dissolved solids

Reverse Osmosis is the process of removing contaminants from tap water using a special semi-permeable membrane. By applying water pressure across the membrane, contaminants are concentrated on one side of the membrane and filtered water on the other side of the membrane. In addition to the membrane, water is filtered through a sediment cartridge to remove larger particulates and a carbon block to remove chlorine and other materials. AquaticLife® 100 GPD 4-Stage Reverse Osmosis/Deionization System makes up to 100 GPD of economically filtered Reverse Osmosis water, removing harmful substances like heavy metal ions and total dissolved solids from tap water.

This RO/DI system features a manual flush valve, allowing users to increase membrane life, and a clear micron cartridge housing makes it easy to view when cartridge should be replaced. The auto shut-off valve stops incoming water supply when outflow is turned off, and wrenches make it easy to access the cartridge and membrane housings.

The garden hose adapter make it easy to connect to a faucet. The 1/4 inch Buddy-Fit Press Fit Connectors simplify plumbing and the 0-160 PSI gauge provides a pressure reading of the supply water. A 10 ft. x 1/4 inch of each Blue, Yellow and Red Polyethylene Tubing helps with plumbing setup. Built-in wall mount bracket allows the unit to be hung and secured in place.

Recommended change: 6 months
The first stage of your RO unit is a five micron Sediment Filter that traps sediment and other particulate matter like dirt, silt and rust which will affect the taste and appearance of your water.

Recommended change: 6 months
The second stage of your RO unit is a Carbon Block Filter. The activated carbon in the filter reduces chlorine and conditions the water prior to the RO Membrane.

Recommended change: 2 Years
The RO Membrane reduces impurities known as Total Dissolved Solids (TDS) from the water down to 1/10,000 of a micron, reducing arsenic, lead, parasitic cysts, copper and more. Because the process of filtering the high-quality water takes time, it is common to use a storage tank to collect filtered water, making it available on demand.

Replace filter when resin changes color
After the water is filtered by the membrane, there is usually a small amount of Total Dissolved Solids (TDS) left in the water. In certain non-drinking water applications, it is important to remove the remaining TDS from the water. This is accomplished by filtering the water through a resin that is charged with Cation and Anion resins (H+ and OH-). As the resin absorbs the TDS, it will change color. When all resin has changed color, it is time to replace the DI filter.


  • Optimal water pressure: 40-65 PSI (if under 40 PSI a booster pump is required)
  • Maximum water pressure: 80 PSI (if over 80 PSI a pressure regulator is required)
  • Optimal water temperature: 77°F (25*C)
  • Maximum water temperature: 105°F (40.5*C)
  • Typical rejection rate: 1:3.5.

100 GPD dimensions with bracket: 16.5" wide x 8.5" deep x 18" high. Weight 14 lbs.

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