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Reverse Osmosis

Aquarium Supplies

RO/DI Systems

We carry a large variety of RO and RO/DI systems that remove impurities—chlorine, chloramines, pesticides, phosphates, heavy metals and many others—from tap water. DI (De-Ionizing) cartridges do an excellent job of removing phosphates, silicates and nitrates from tap water. They are highly recommended for reef tanks.

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  1. Captive Purity 35 GPD Pro RO/DI Filter System - Clear Canisters

    Captive Purity Pro RO/DI Filter System - Clear Canisters

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    Captive Purity represents the highest quality in reverse osmosis technology. Captive Purity Reverse Osmosis Systems meet stringent standards and far exceeds the quality of systems from other manufacturers. A wide variety of option...
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    $252.48
  2. SMC Ball Valve 1/4 inch FPT x 1/4 inch FPT

    SMC Ball Valve

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    SMC Ball Valve 1/4 in FPT x 1/4 in FPT **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Gua...
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    $6.99
  3. Seachem Pinnacle + (100GPD) RO/DI - 3027

    Seachem Pinnacle + RO/DI

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    Reverse osmosis, also known as hyper-filtration, is the finest filtration known. This process will allow the removal of particles as small as ions from a solution. Reverse osmosis is used to purify water and remove salts and other...
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    $499.98
  4. SpectraPure® Maxpure 25 GPD RO System

    SpectraPure® Maxpure RO System

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    SpectraPure® MaxPure Systems incorporate a high-silicate removal TFC membrane, a 1 micron MicroTec Sediment Filter, and a Carbon Block Filter. MaxPure Systems are available from 25 gpd (95 LPD) to 180 gpd (680 LPD) production rate...
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    $159.98
  5. SpectraPure® Maxpure 25 GPD RO/DI System

    SpectraPure® Maxpure RO/DI System

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    SpectraPure® MaxPure MPDI Systems incorporate high-flow high-rejection TFC membranes, a 1 micron sediment filter, a 10 micron carbon block filter, and a custom formulated 10” color-change DI cartridge. MPDI systems are available f...
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    $229.98
  6. 1/4 inch RO Tubing - Black

    1/4 inch RO Tubing

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    1/4" Reverse Osmosis Tubing - Black (sold per foot) Modify the cart quantity to increase the length of your tubing. **Variations of this product can be found in many online stores. The version we carry is of the highest qual...
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    $0.25
  7. Flow Restrictor 25 GPD

    Flow Restrictor

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    Flow restrictor for 25 GPD membranes—for replacement or when upgrading to a higher GPD membrane. Please note that these replacement cartridges are interchangeable with Captive Purity`s, Kent Marine`s, and SpectraPure`s RO or RO/D...
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    $3.49
  8. Kent Marine Powdered RO Right 250g

    Kent Marine Powdered RO Right

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    Have you ever thought about providing your fish with a realistic, ocean environment within the confines of their tank? Are you finding it difficult to present your marine inhabitants with the surroundings, which will make them fee...
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    $6.99
  9. Captive Purity Hi-Silicate Removal TFC Replacement Membrane 25GPD

    Captive Purity Hi-Silicate Removal TFC Replacement Membrane

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    The key component for any reverse osmosis unit is its membrane. The membrane will determine the type of contaminants removed and how much water the unit will produce. Our Captive Purity Hi-S (High Silicate) membranes are the gold ...
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    $28.49
  10. Kent Marine Hi-S TFC Membrane 35 GPD

    Kent Marine Hi-S TFC Membrane

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    When it comes to RO/DI Systems, the Kent Marine Company has always provided its customers with a wide range of products, which will cater effectively to their maintenance needs. However, the regular use of these machines may event...
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    $95.50

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