Aquatic Life RO Buddie 3-Stage Aquarium Water Filter System, Reverse Osmosis RO Filtration Unit for Fish Tank, Fountains, and More, 100 GPD (Gallons Per Day)
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Availability:
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Arrives
Sunday, Oct 25
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Size: 100-Gallon Three stage (Pack of 1)
Features
- CLEAN, FILTERED WATER FOR AQUARIUMS: The Aquatic Life RO Buddie 3-Stage RO water filter system for aquarium uses reverse osmosis to remove debris from tap water to give you clean water fast for your fish tanks, humidifiers, fountains, and more.
- POWERFUL FILTRATION OF TAP WATER: This fish aquarium filter system helps take out up to 98% of total dissolved solids from tap water; this system gives your fish and plants the clean water they need for an optimal aquatic home.
- WHAT THE SEDIMENT FILTER DOES: Tap water is filtered through a sediment filter in this reverse osmosis aquarium filter system that catches dirt like sand, silt, and more, which affect the quality and appearance of water.
- REMOVES CHLORINE AND ODORS: The carbon block filter in this fish tank water filter helps take out chlorine and unpleasant smells, so water is safer for fish and plants (Note: it wont remove chloramines).
- THE RO MEMBRANE FILTER: The RO membrane filter in this RO water filtration system for aquarium filters almost everything else, removing most dissolved solids, turning tap water into much cleaner water which is gentler for sensitive aquatic life; If you want full performance specs, download the products technical PDF for info
Description
RO Buddie, 100 GPD Reverse Osmosis Filter Inline Sediment Filter Inline Carbon Block Replacement Cartridge 2pk Replacement Filter Set How often should I replace the filters? Sediment and carbon filters typically last 3-6 months. RO membranes last 1-2 years depending on usage. DI resin should be replaced when it changes color. Can I use RO Buddie for drinking water? No What is TDS, and why is zero TDS important? TDS (Total Dissolved Solids) measures minerals, salts, and impurities in water. Zero TDS means the water is completely pure, leaving no spots or residue after drying - ideal for a spotless rinse.
Brand: Aquatic Life
Special Feature: Compact, Portable
Product Dimensions: 7"L x 7"W x 13"H
Material: Sediment,Carbon,RO Membrane
Capacity: 100 gallons_per_day
Included Components: Aquatic Life RO Buddie 3-Stage RO System - 100 GPD
Package Information: Cartridges
Installation Type: Wall Mount
Purification Method: Reverse Osmosis
Power Source: Not an Electric Unit
Product Dimensions : 7.25 x 4 x 13.75 inches; 3.1 pounds
Item model number : 540017
Date First Available : June 27, 2013
Manufacturer : Aquatic Life LLC
Best Sellers Rank: #8,724 in Pet Supplies (See Top 100 in Pet Supplies) #26 in Aquarium Filters
#26 in Aquarium Filters:
Customer Reviews: 4.2 4.2 out of 5 stars (526)
Other Special Features of the Product: Compact, Portable
Container Type: Cartridges
Installation Type: Wall Mount
Purification Method: Reverse Osmosis
Power Source: Not an Electric Unit
Upper Temperature Rating: 100 °F
Supported Water TDS Level Maximum (PPM): 500
Item Dimensions L x W x H: 7"L x 7"W x 13"H
Capacity: 100 gallons_per_day
Item Weight: 3.1 pounds
Material Type: Sediment,Carbon,RO Membrane
Brand Name: Aquatic Life
Included Components: Aquatic Life RO Buddie 3-Stage RO System - 100 GPD
Model Name: 540017
Model Number: 540017
Warranty Description: Manufacturer Warranty
UPC: 810957010171
Global Trade Identification Number: 71
Manufacturer: Aquatic Life LLC
Number of Items: 1
Unit Count: 1 Count
Number of Packs: 1
Item Type Name: Aquatic Life RO Buddie 3-Stage RO System - 50 GPD
Part Number: 540017
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 25
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 100-Gallon Three stage (Pack of 1)
I dont see why someone could write a bad review on this RO aquatic filter...... it works like a dream, 2:1 wast water, 10 minutes to connect to water supply and mount. What can I say it works like a dream. I use it for a hydroponic setup on a 4×8 flood table with 28 plants in 3 gallon fabric pots it so far it works perfectly... time will tell if it holds up but for the price and performance I'm extremely happy with my purchase... I spent hours looking at all the different RO water filter on Amazon and I finally decided on this one and I'm happy I did. I purchased a float valve separately to have automatic shutoff on my water tank to complete my system. With automatic water feeding and the float valve the system pretty much runs itself. Hope this review helps someone else with there RO water filter decision. If i run into any problem in the future I'll be sure to report back.
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Reviewed in the United States on November 12, 2025 by Gemello
Size: 100-Gallon Three stage (Pack of 1)
This filter pack is small and fairly impressive for its size. Initial set up took about 1.5 hours including flush time. I ended up just mounting it to the wall next to a drain for easier flushing and waste water disposal. For the full water cleaning I did add the DI cartridge to the front of it and it’s worth the extra money if you need clean water. It does say the water is no longer drinkable after passing through the optional DI filter though so keep that in mind. The system is being used to balance aquarium water so it’s not an issue for me. My suggestion is to get a 5 gallon jug and make several gallons at once. It connects to a faucet which can be a pain. The gasket they sent in the kit had to be cut down to fit. So I used the included razor blade and very carefully sliced the gasket like a bagel to make it stop leaking at the faucet. I don’t like the idea of having my faucet occupied by the filter system so devising an alternate would be helpful. Otherwise I am pleased with filter so far. It’s early in the testing process but the first 5 gallons came out without trouble. After fixing the faucet leak the system stays dry but follow the directions and insert the tube properly. Other systems seem to cost more so it’s hard to turn this down for the price if you have high TDS in your water or there is a need to remove other chemicals such as Chlorine.
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Reviewed in the United States on January 26, 2020 by Kevin M.
Size: 100-Gallon Three stage (Pack of 1)
So I bought this after reading the mixed reviews here. I needed RO water for my fish tank as our water here is very hard. After using this product, the water I collect is clean and soft! It works very well and delivers a GPH of around 5 (based on my measurement). It's loosing a star though because it is clunky-er than I'd like it to be but I'm using it outside and running a tube through the window (no mess!) so aesthetics aren't a big deal. To respond to a few points other people raise: Leaks: I bought teflon tape when I purchased this product. The only leak I encountered after 4 hours of use was from the RO filter housing. I put Teflon tape on the threading and BAM no more leak. I would assume any other leaks can be solved the same way if I get them. Undoing the tubing: The product had instructions in it. Maybe an older model didn't but the one I received did. Worst case their website explains with pictures how to remove/secure the tubing. Wastefulness: It does put off a good amount of waste water. I didn't measure it but it seems to flow 2-4 times faster than my clean outlet. I bought enough tubing to go with it that I can just put it in our garden and water some plants while I get my clean water. Alternatively if you do not have plants to water, it can go down the drain. Even with the waste, this is more cost effective than buying bottled or RO water. Life of the filter: I've read a couple reviews talking about the filter not lasting very long. I will update this after more uses. Because it's slow flowing, you will need either a holding tank or direct flow into what ever your application is. I have large home depot buckets and a 30 gallon storage tub that work great.
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Reviewed in the United States on September 10, 2014 by Faith
Size: 100-Gallon Three stage (Pack of 1)
This works very well. I read all of the 1 star reviews and had to jump in... If you are getting HIGH PPM, you more than likely are capturing the WASTE water and need to reconfigure your RO buddie. This is NOT meant to feed DRINKING WATER supplies (i.e. faucet/refrigerator water supply) depending on the flow speed it is between 50-100 GALLONS PER HOUR. I have been successfully breeding Caridina shrimp using only this RO buddie with its original membrane/carbon/sediment cartridges since August 2016- On average I fill a 55 gal reservoir tank every other day. I am still getting a constant 3 ppm and recently bought a new sediment and carbon cartridge. I am maintaining the following planted tanks with only the RO buddie water and no water treatment chemicals. On average 40-50% water changes on each tank 1-2 times a week. 1x5 Gal cube tank, 1x2.5 gal desk tank, 4x20 Gal shrimp breeding tanks, 1x29 Gal planted show tank. Recently added a 40 Gal discus breeding tank to the mix doing 50% water changes every other day or every day if I have time. Planning on adding 2 more 55 gal reservoir tanks to keep up with my water changes as I do have to wait sometimes (only using the 50 GPM version!). As for the advice to get a "more expensive one" does not solve the inability to read instructions. This is the most cost effective RO/DI system on the market with cheap replacements for sediment and carbon cartridges. If you maintain these two things then the membrane will last as its intended. If you are not running some industrial fish breeding op then go with this one and follow instructions/common sense.
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Reviewed in the United States on March 2, 2017 by DantheAmazonMan
Size: 100-Gallon Three stage (Pack of 1)
I purchased one of these years ago and it did just great. After moving I purchased another one for the new house, but the new one's flow rate was abysmal. It was taking almost 5 hours to fill a 5 gallon barrel. (product claims 100 gal/day--> about 4gal/hour.) After returning that one and getting a new one, the new one also does not work, but for different reasons. The second one's flow rate was fast but it was not filtering at all. I measured my tap water, the waste water, and the "filtered" water with a TDS meter, and all readings were 180 ppm. I have tested this same meter with bottled water that reads 15ppm, an appropriate amount for filtered water. I'm not sure If I was unlucky, or the product has gone down in quality.
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Reviewed in the United States on February 23, 2025 by Jacob Henderson
Size: 100-Gallon Three stage (Pack of 1)
Works, but the DI Resin cartridge is separate. And it runs out really fast. Besides that, it's a decent system for the money. Spend a little more and you can get a top notch refurbished Spectre Pure unit that has more standard cartridges which can be changed much easier and cheaper than these replacements.
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Reviewed in the United States on December 24, 2014 by C. Thungc
Size: 100-Gallon Three stage (Pack of 1)
Easy! Not as hard as it looks (my opinion.) I was scared to try this, I wasn’t sure if I could hook it up or not. Not bad! Watch the video on the amazon site, or you tube. I thought it was easier than reading the directions. I got it for my 75 gallon saltwater fish/reef tank. Works great! My water has been easier to balance. I can’t say for other uses. I don’t drink it, I guess you could, but I don’t. 2nd thought: don’t drink it till you know it’s safe! Ask someone who knows what they’re doing!🤦♀️😂 It’s great for aquarium set up and maintenance. My Saltwater fish/anemones are doing great! I did the kitchen sink setup, people mention using their bathtub faucet (that requires an adapter.) My kitchen sink is closer to my tank, and I had everything included. It’s easy! A little slow/time consuming (when making 75 gallons.) But, the results were worth it.
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Reviewed in the United States on August 9, 2020 by brandy
Size: 100-Gallon Three stage (Pack of 1)
I've been using this for a couple of weeks now and I really like it! It replaced a 50gpd RO filter that I just wasn't getting enough water out of daily. I definitely don't get 100gpd with this unit but it is doing double what my old unit did. I use straight cold water as that will get me better quality RO water but the flow rate is not as high. My tap water is around 350 ppm of TDS and the RO gets it down to between 8 and 10 ppm. The only complaint I have is that it didn't ship with the hosing required for the outputs. Luckily, I was replacing an old filter and used the hosing from that one. It's a cheap buy at Home Depot if you don't have any lying around and it may have mentioned that somewhere in the description but I didn't notice it. Overall, I am very happy with this purchase. It's compact size, high output and ease of set up make this unit highly recommended!
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Reviewed in the United States on March 18, 2015 by S Funk