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AquaticLife RO Buddie 3-Stage Reverse Osmosis System
AquaticLife RO Buddie 3-Stage Reverse Osmosis System
AquaticLife RO Buddie 3-Stage Reverse Osmosis System
Additional sizes may be available!
Additional sizes may be available!

Please Note: Return of electrical equipment for exchange or store credit is limited to 30 days from the date of purchase. Beyond 30 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.

Returned products must be unopened and in the original packaging to receive full store credit. Products that have been opened, used, or lightly used, will incur a 15% processing fee. Upon receipt of the returned product, store credit will be applied, minus the processing fee.

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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

3-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

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.

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