Aquatic Life RO Buddie Three Stage Osmosis System
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Enjoy unbelievable function in the compact design of the Aquatic Life RO Buddie Three Stage Osmosis System. Designed to provide a reliable source of economical filtered water, this system is available in a 50 or 100 gallon size to meet your aquarium needs. Using a membrane filter cartridge in conjunction with carbon and sediment cartridges, it works to effectively and efficiently remove harmful substances from municipal water—including heavy metal ions, dissolved solids, chlorine, and particulate matter—making it safe and suitable for your vibrant fish.
Key Benefits- Efficiently and effectively removes harmful substances from municipal tap water.
- Small footprint of this 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” cartridges.
- Faucet adapter makes it easy to connect to standard garden hoses and comes with 20 feet of tubing to plumb.
- Included mounting brackets keep the unit secure and included membrane housing wrench makes removing the cap easy.
Sediment cartridge, carbon cartridge, RO membrane, RO unit housing with mounting bracket, canister cap wrench, faucet connector, and installation and maintenance guide.
Compatible Products
Keep your system running smoothly with Aquatic Life filter cartridges.
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Item Number118957
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Dimensions13.75 x 7.25 x 4 inches
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Weight3.1 pounds
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Aquarium TypeFreshwater, Saltwater
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Fish TypeTropical Freshwater, Marine Fish
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MaterialPlastic
How it Works
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Stage 1- Sediment Cartridge: Incoming water first passes through a Sediment Cartridge, which removes particulate matter often found in tap water.
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Stage 2- Carbon Cartridge: After particulates and debris are removed from the water, it then passes through a Carbon Cartridge where chlorine, chloramines, and other impurities are removed or neutralized.
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Stage 3- RO Membrane: The final stage of purification occurs when water travels through the semipermeable thin film composite (TFC) membrane, removing any remaining solutes.
Detail | Specifications |
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Minimum Water Pressure | 60 PSI |
Maximum Water Pressure | 100 PSI |
Optimal Water Temperature | 77°F (25°C) |
Maximum Water Temperature | 105°F (40°C) |
Typical Rejection Rate | 1:4.5 |
Customer Reviews

67% Recommend
67% of reviewersrecommend this product
You've Already Reviewed This Item
9 Reviews
9 Reviews
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Good product
By LeeHilton on Feb 8, 2020
Have had it for about 4+ minths now and it works good. Uses a lot of water, its slow to fill and our water here isn't great. Its hooked right up to a sink and goes right into the tank of choice thou. It was easy to hook up, wasn't broke, and doesn't leak. Had a small leak at first but that was due to the sink, and if you try to pull the line too tight it can cause a leak. Both were easy fixes.
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RO water for frogs
By Jenny on Apr 27, 2020
The system is pretty easy to assemble using the on line video, though written instructions are poor. I had it working in 20 mins.
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Don't buy cheap junk
By Jskejej on Jul 14, 2020
Fresh out of the box never before been used and broken
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Unhappy about this product!
By Newfishguy on Dec 2, 2019
The slide in water connections leak, the top 90 degree fitting broke! Not chewy fault, just not good quality built product. Wasted alot of water using this system!
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It broke before I could even follow the included instructions
By Chris on Apr 5, 2018
(Kudos to chewy.com- geez was the shipping fast!) as soon as I took this filter out of the box and read the included setup instructions and began the initial flushing process. Once I unscrewed the cap of the membrane housing lid and placed the membrane in to flush and the tiny 90 degree elbow came partially unseated and now water is leaking all over the place.
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Great product
By Discusman on Feb 20, 2018
I was going to get one of the high dollar systems, but thought I would give this one a try, could not beat the price and I’m glad I went with this one instead. Saved a ton and it works great!
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Excellent Product and Price
By JamieAndMatt on Feb 10, 2018
Excellent product for an affordable price. Very Fast shipping and Great customer service. No need to waste money on a more expensive RO system. We tested the water and the RO Buddie did everything it claimed. Very impressed!
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Little guy packs a punch
By LostInReefing on Feb 11, 2018
This little dude is very good simple install and does what it says It will
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Great purchase
By Slots on Aug 17, 2017
Clear, easy instructions to put the minor components together. Was making RO water the same day it arrived. Fast, free delivery. Second time I have ordered from Chewy for general supplies or food for salt water aquarium and dogs. Will order from Chewy again.