AquaticLife Twist-In 100 GPD, 4-Stage RO/DI Unit

  • $229.00
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2-10 Days 

The Aquatic Life Twist-In 100 GPD 4-Stage Reverse Osmosis Deionization (RODI) filtration system is a very compact water purification solution that efficiently combines reverse osmosis RO and DI technology with our quick and easy to change twist-in replacement filter cartridges. The new twist-in media cartridge design makes filter changes simple, easy and clean – no tools required and no mess! The twist-in cartridges can be easily changed in only seconds with just a quarter turn and without contact with used filter material, and the supply water to the unit does not have to be turned off to replace any cartridge.

STAGE 1 – TWIST-IN SEDIMENT FILTER CARTRIDGE: Recommend replacing every 6 months. The first stage of your RO unit is a 5-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. Item 330377.

STAGE 2 – TWIST-IN CARBON BLOCK FILTER CARTRIDGE: Recommend replacing every 6 months. The second stage of your RO unit is a Carbon Block Filter. The Activated Carbon in the filter reduces chlorine by up to 99% and conditions the water prior to the RO Membrane. Item 330379.

STAGE 3 – TWIST-IN RO MEMBRANE FILTER CARTRIDGE: Recommended replacing every 1-2 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. Item 330375.

STAGE 4 – TWIST-IN MIXED BED COLOR CHANGING RESIN DEIONIZATION CARTRIDGE: Replace filter when resin changes color completely to amber. When all resin has changed color, it is time to replace the DI filter. Item 330380.


Small footprint of the unit makes it easy to place under cabinets or in limited spaces.

Twist-In cartridges for fast and easy replacement of filter media. Triple-sealed cartridges ensure trouble-free operation.

Compact design with pivoting cartridge heads is perfect for small spaces. Mounting Brackets hold the unit securely while mounted in a convenient location.

Includes everything for installation:

Tubing, Water Supply Connectors, Drain Connector.