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)
Condition: New
Buy Now, Pay Later
As low as
$13.67
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Saturday, Jun 27
Size: 100-Gallon Three stage
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
Brand: Aquatic Life
Special Feature: Compact, Portable
Product Dimensions: 7"L x 7"W x 13"H
Material: Sediment,Carbon,RO Membrane
Capacity: 100 G/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
Is Discontinued By Manufacturer : No
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: #8,541 in Pet Supplies (See Top 100 in Pet Supplies) #25 in Aquarium Filters
#25 in Aquarium Filters:
Customer Reviews: 4.2 4.2 out of 5 stars (523)
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 Degrees Fahrenheit
Supported Water TDS Level Maximum (PPM): 500
Smart Home Compatibility: Not Smart Home Compatible
Item Dimensions L x W x H: 7"L x 7"W x 13"H
Capacity: 100 G/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
Part Number: 540017
Item Type Name: Aquatic Life RO Buddie 3-Stage RO System - 50 GPD
Unit Count: 1 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Jun 27
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 100-Gallon Three stage
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.
...
show more
Reviewed in the United States on November 12, 2025 by Gemello
Size: 100-Gallon Three stage
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.
...
show more
Reviewed in the United States on August 9, 2020 by brandy
Size: 100-Gallon Three stage
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.
...
show more
Reviewed in the United States on September 10, 2014 by Faith
Size: 100-Gallon Three stage
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.
...
show more
Reviewed in the United States on March 2, 2017 by DantheAmazonMan
Size: 100-Gallon Three stage
I've had the 50 gpd and now the 100, only get about 120 gallons before the di is exhausted with the 100gpd. The 50gpd offers great value and clean water for this price, but I wouldn't recommend the 100gpd as di resin seems to last 1/4 as long. I run 2 di cartridges to achieve 0-1 ppm water from well water. Sediment and carbon cartridges are small and don't last very long with this as the only downside...... They're cheap and easy to replace. I get about 200 gallons average out of them, that makes it cheaper than buying water for me. Use the smart buddie booster if you have low pressure and these produce good water at a good rate (I have the booster).
...
show more
Reviewed in the United States on February 24, 2019 by Lance Thebodeau
Size: 100-Gallon Three stage
It's a good stand alone RO system for a camper, 1 or 2 person apartment life, or travel, or for a large fish tank set up . You should get a mineral chamber as to add this to the water filter if you plan on drinking the water and want good tasting water. But this is true with ALL RO systems. But not a household family usage without constant filter changes. IMHO What I liked about this? ZERO yes Zero TDS. Its for my reef tank. I did add 2 other carriages. I took this from a 3 stage to a 5 stage to make it a RO/ID system. No Leaks !!! I did need more tubing to set this up. and it is portable. What I did not like, was a little P.I.T.A. on configuring this for the 2 other carriages. no real instructions but no biggie.
...
show more
Reviewed in the United States on January 1, 2021 by BRIAN'S G.
Size: 100-Gallon Three stage
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.
...
show more
Reviewed in the United States on February 23, 2025 by Jacob Henderson
Size: 100-Gallon Three stage
I have an indoor garden in my house and I was using my tap water for the longest time. My tap water would always change and was never consistent causing nutrient issues with my plants. I did some research on RO units and this one fit my bill because of its cheap price and ease of setup. I have it hooked up in my garage where my garden is and it also came with the attachment to hook it up to a hose faucet. This thing literally took me 20 minutes to set up and was getting 7ppm water after completed! My ppm's on my tap water would range from 250-350. One thing to note is that you are going to have to buy extra tubing to run from your water source to the unit, Unit to waste drain, and unit to reservoir where you will be holding your clean RO water. Other than that it is an outstanding piece of equipment that has made my life so much easier.
...
show more
Reviewed in the United States on January 10, 2014 by Nick