Aquatic Life RO Buddie 3-Stage Reverse Osmosis System: Aquarium Metal Halide Lighting
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AquaticLife RO Buddie 3-Stage Reverse Osmosis System

AquaticLife RO Buddie 3-Stage Reverse Osmosis System
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Economical 3-Stage Reverse Osmosis units for under $100!
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Economical 3-Stage Reverse Osmosis unit priced right for aquarists
Filters tap water impurities that compromise aquarium water quality
Compact footprint allows easy installation for convenient aquarium use

AquaticLife3-stage reverse osmosis (RO) unit boasts great hobby-friendly price PLUS compact footprint! Aquatic Life RO Buddie 3-stage Reverse Osmosis System is the affordable RO unit designed to provide a source of economical filtered water for aquarium use. 3-stage RO unit employs a Thin-Film Composite (TFC) membrane RO Cartridge with carbon and sediment cartridges to effectively remove dissolved solids, chlorine, and particulate matter. AquaticLIfe RO Buddie is available in 50 and 100 GPD models.

Easily convert your 3-stage unit into a 4-stage RO DI unit with an add-on De-ionization (DI) Color Changing Mixed Bed Resin Cartridge (Item #85952. Sold separately). Cation and Anion resins (H+ and OH-) remove the remaining total dissolved solids (TDS) from membrane-filtered water for purified water with average conductivity values of about 0.1µS.

Please Note: User must supply own 1/4" tubing to connect to water supply, filtered water and waste water connections on the RO Buddie.


  • Small footprint of the RO unit makes it easy to place under cabinets or in limited spaces
  • Sediment and Carbon Cartridges are up-front and easy to replace
  • Membrane Housing accepts standard 11-3/4" membrane filters
  • Faucet Adapter makes it easy to connect to standard male hose thread
  • Quick Connections make it easy to remove and replace cartridges
  • Mounting Brackets hold the unit securely while mounted in a convenient location
  • Wrench makes removing the membrane housing cap easy

Product Specifications
Optimal Water Pressure: 60 PSI
Maximum Water Pressure: 100 PSI
Optimal Water Temperature: 77° F
Maximum Water Temperature: 105° F
Typical Rejection Rate: 1:4.5

Downloadable Aquatic Life RO Buddie 3-Stage Reverse Osmosis System Instruction Manual & Specification PDF, 50 gpd RO Unit Spec Sheet PDF, and 100 gpd RO Unit Spec Sheet PDF.
(Requires Adobe Acrobat Reader 4.0 or later - get it here for free)

Shop all Aquarium RO & Deionization products.

Please click on "More Information" for additional product overview.

More Info
The RO Buddie uses replaceable Sediment, Carbon and RO Membrane cartridges. The Sediment and Carbon cartridges are self-contained. The RO Membrane is located in the center canister.

The RO Buddie should only be connected to a cold water supply. The optimal water temperature is 77°F. Using other water temperatures will diminish the effectiveness of the filtration and can accelerate degradation of the membrane.

Use care not to over tighten the threaded connections - in particular the elbow connections. If once installed the system should leak, use plumber's Teflon® tape on the threaded fittings.

When using a new Carbon Cartridge, remove the Membrane and run water through the carbon to rinse out any possible carbon dust.

Protect the Membrane from freezing and from drying out. After its first use, the Membrane must never be allowed to dry out. If the reverse osmosis system will not be active for more than 10 - 15 days, use a protective solution (Preservation Fluid), which maintains the efficiency of the osmosis unit by inhibiting bacterial growth and prevents the deposition of impurities.

Ratings & Reviews
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