Reverse Osmosis De-Ionization Units for Aquarium Use: AquaFX Barracuda RO/DI Units
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AquaFX Barracuda RO/DI Units

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AquaFX Barracuda RO/DI Units
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Overview
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4-stage Reverse Osmosis (RO) & De-ionization (DI) units produce ultra pure water
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DI stage polishes RO water for Total Dissolved Solids (TDS) reduction beyond 90%!
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Use RO/DI water in freshwater or saltwater aquariums that require highest water quality

AquaFX4-stage RO/DI units produce ultra pure water for aquarium hobbyists that demand the best. AquaFX Barracuda RO/DI Units adds another filtration stage to its premier water filtration technology for TDS rejection rates beyond 90%! Standard unit comes with a high efficiency, 1-micron sediment pre-filter (Stage 1), high-capacity chlorine and Volatile Organic Compound (VOC's) removing Carbon Block (Stage 2) and a special TFC/HI-S RO membrane (Stage 3). The RO membrane is a TFC sheeted element boasting high silicate rejection. Mixed bed DI resin filter (Stage 4) polishes RO water for ultra pure water of the highest quality.

Barracuda RO/DI Units feature a heavy-duty solid aluminum metal bracket for reliable "no-rust" mounting. Bracket-mounted 160psi pressure gauge allows easy monitoring of water pressure through the unit. Barracuda RO/DI Units are available in 50, 100, 200 and 300 gpd flow rates to produce ultra pure water great for use with freshwater or saltwater aquariums housing delicate species. Double Membrane 200 gpd RO/DI Unit and Triple Membrane 300 gpd RO/DI Unit are fitted with additional TFC/HI-S RO membranes to ensure reliable production of pure water (two RO membranes and three RO membranes, respectively).

All systems include quick connect fittings, tubing, a filter wrench for easy cartridge replacement and a feed adaptor.

To ensure reliable RO/DI unit performance, genuine AquaFX Replacement Filters and AquaFX Float Valve and Auto Shutoff Kit are available, each sold separately.

Use the AquaFX Booster Pump to increase water line pressure to operational levels (above 35psi) or to optimize the overall performance of your RO/DI system.

Operational Specifications
Max. Total Dissolved Solids
140 ppm
Max. Temperature
80°F
Min. Temperature
40°F
Max. Pressure
80 psi
Min. Pressure
40 psi

Downloadable Barracuda Manual PDF.
(Requires Adobe Acrobat Reader 4.0 or later - get it here for free)

Shop all Aquarium RO & Deionization Units

Please click on "More Information" for filter change sheet and normal operation.

More Info
Filter Change Sheet and Normal Operation
Note: Always hook your RO unit to a softened water supply.
Note: Filters are referenced in the order in which they appear in the system.
  1. Sediment Filter: This filter is first in line; removes particles that can be physically filtered out. An example of a particle that would be removed is sand. This filter's life depends on the amount of particles in your water. The best gauge of this filter's life is pressure drop. When you see a 5PSIG drop, you should change your filter. Discoloration is also a sign that the filter is loaded and therefore time to replace with a new filter.
  2. Carbon Block, GAC or Chloramine Blaster Filter: These filters effectively reduce VOC's (Volatile Organic Compounds) ONLY for water that is safe by the federal Safe Water Drinking Standards. If you have water with a known containment, you need to treat it accordingly. The only cost effective way to predict filter life is by estimating the gallons produced (unless carbon is being used for a known containment, then testing is essential). The carbon block will filter 3,750 gal @ 1.0 GPM of 2ppm Chlorine (Cl2). A GAC will yield 5,000 gallons of treated water@ 1.0 GPM of 2ppm Chlorine (Cl2). The Chloramine Blasters are run two in series and will yield approximately 8,000 gallons of treated water. Do not exclude drain water from this capacity, as it is treated water.
  3. Reverse Osmosis Membrane: This is the first component in the system that reduces Total Dissolved Solids (TDS); a common example of dissolved solids can be salts or calcium. A TDS meter is the best way to determine if your membrane is operating properly. A properly operating membrane will give you a TDS reduction of at least 90%. EXAMPLE: Raw water TDS is 100ppm, after the membrane it should be 10ppm or less. Membranes can fail by Clogging or Scaling, in which case very little or no water will be produced. Membranes will also fail from contact with chlorine. If this happens, the water quality will be very poor. So changing the carbon filter on time is essential. Hot water will also ruin a membrane (>80 Deg. F). If your membrane produces significantly more than it is rated for, that is an indication that something is wrong.
  4. Deionization Filter (DI): IF USED, the DI filter is the last filter inline. This filter consists of two resins. One is charged with Hydrogen (H+) and the other a Hydroxide ion (OH-). As water passes over these resins, the remaining "salts" (or ions) exchange out and only H+ and OH- are released into the stream. Due to the quality of resin we use, the water you get will be, literally as pure as possible. The resin is a color indicating resin; it will slowly change from a dark purple/blue/black to a rust red/orange color. As this filter nears the end of its useful life you may experience "break though". Keep this in mind, depending on the water quality needed. For applications demanding 18 megohm (ultra pure) water, two DI's are STRONGLY recommended.
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