Top 6 RO/DI Water Filter Picks

Using an individual reverse osmosis, deionization, or a combination RO/DI water filter unit to purify tap water sources before use in either fresh, brackish, or saltwater systems provides far superior water quality. These types of filters remove nitrate, phosphate and other chemical elements found in tap water that can lead to algae blooms and other problems. If you have a high level of contaminants in your tap water, a high performance RO unit for maximum filtration is recommended.

1. Kent Marine Maxxima RO/DI Units

The Kent Marine Maxxima RO/DI Units filter out 99.9% of the impurities in tap water. These 4 stage units can be used with any water source and will remove the maximum amount of contaminants from tap water.

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2. Ultralife Crystal Clear RO Unit

Ultralife Crystal Clear RO 25 GPD Unit is cost effective and removes up to 98% of mineral and chemical contaminants from tap water through 3 stages filtration.

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3. Kent Marine Full-Size RO TFC Unit

The Kent Marine Full-Size RO TFC Unit is a complete 3 stage water purification system at a reasonable price. This unit can be used with well or chlorinated water systems. Three sizes to choose from.

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4. Spectrapure 3 Stage MaxPure MPRO RO Unit

The Spectrapure MaxPure MPRO RO Unit efficiently removes water contaminants in 3 stages, with optional saddles and tubing it can be tapped into existing plumbing.

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5. Poly-Bio-Marine PMA-1 Molecular Absorption

The PMA-1 Molecular Absorption unit by Poly-Bio-Marine efficiently removes dissolved pollutants in water. This unit would require the addition of a pre-filter to remove particulate matter from the water.

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6. Kent Marine Bare Bones TFC RO Unit

The Bare Bones RO unit by Kent Marine is a basic 2 stage reverse osmosis water filter with a TFC membrane and an IFCE inline carbon/sediment pre-filter which will remove 90-98% of water contaminants.

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