---
product_id: 33446114
title: "Aquatic Life RO Buddie 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Units for Aquarium, 50 GPD"
brand: "aquatic life"
price: "S/.626"
currency: PEN
in_stock: true
reviews_count: 9
category: "Aquatic Life"
url: https://www.desertcart.pe/products/33446114-aquatic-life-ro-buddie-4-stage-reverse-osmosis-deionization-water
store_origin: PE
region: Peru
---

# 50 GPD ultra-pure output TDS reduction to 0.01% 4-stage advanced filtration Aquatic Life RO Buddie 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Units for Aquarium, 50 GPD

**Brand:** aquatic life
**Price:** S/.626
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your aquarium game with water so pure, your fish will thank you!

## Quick Answers

- **What is this?** Aquatic Life RO Buddie 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Units for Aquarium, 50 GPD by aquatic life
- **How much does it cost?** S/.626 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/33446114-aquatic-life-ro-buddie-4-stage-reverse-osmosis-deionization-water)

## Best For

- aquatic life enthusiasts

## Why This Product

- Trusted aquatic life brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision TDS Reduction:** Membrane filters reduce Total Dissolved Solids to 1 part in 10,000, ensuring ultra-pure water for sensitive species.
- • **Eco-Conscious Filtration:** Efficient reverse osmosis process with no heat required, balancing water purity with environmental responsibility.
- • **Compact & Portable Design:** Lightweight 3.9 lbs unit fits seamlessly in apartments or small spaces—easy to install, maintain, and relocate.
- • **High-Capacity 50 GPD Output:** Generates up to 50 gallons of near-distilled water daily—perfect for busy hobbyists and multi-tank setups.
- • **Crystal-Clear Aquarium Water:** Achieve pristine aquatic environments with 4-stage RO/DI filtration that removes sediments, chlorine, and dissolved solids.

## Overview

The Aquatic Life RO Buddie is a compact, 4-stage reverse osmosis and deionization water filter system delivering up to 50 gallons per day of ultra-pure water. Designed for aquarium enthusiasts, it reduces Total Dissolved Solids to near zero, removes sediments, chlorine, and minerals, ensuring optimal water quality for delicate aquatic life. Lightweight and easy to install, it’s ideal for small spaces and multi-tank setups, offering professional-grade filtration with eco-conscious operation.

## Description

desertcart.com : Aquatic Life RO Buddie 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Units for Aquarium, 50 GPD : Livestock Equipment : Pet Supplies

Review: Nice little unit! - With very few exceptions, we’ve been really happy with this RO system. It’s compact, lightweight, affordable, and incredibly easy to assemble and maintain. A few months ago, we bought a humidifier and filled it with Brita‑filtered water. After a couple of weeks, we noticed a fine layer of mineral dust coating the kitchen, living room, and even the inside of our cabinets. After some research, we learned that Maryland’s water contains an unusual amount of salts and minerals that the Brita pitcher—and the humidifier’s own filter—simply can’t remove. Our options were to either buy distilled water constantly or utilize an RO system. Since hauling gallons of water up three flights of stairs wasn’t appealing, we chose this unit to produce near‑distilled‑quality water right at home. The unit arrived on time and in excellent condition. After watching a setup video and reading the instructions, assembly was a breeze. No leaks, no errors, no issues at all. Just be sure to cut the tubing exactly as shown in the video—improper cuts can lead to crimping and unnecessary swarf. Also, follow the two‑step flushing process: the first flush is done without the RO filter installed, and the second 30‑minute flush is done with the RO filter in place. Once that’s complete, you’re ready to go. Since we live in an apartment, using the kitchen faucet to produce our RO water was our only practical option. It works great, and although it’s a slight inconvenience to move the RO system from the kitchen sink to the bathroom (to drip in the other sink), it’s still far better than hauling 15 gallons of water up three flights of stairs every week. We then made a nice wooden stand for the RO system to keep it vertical and from lying on the countertops. Here are a few exceptions. It’s quite slow—about 27 minutes to produce a gallon of RO water. Because this ties up the kitchen sink, RO production has to be scheduled, and I always set a timer to remind myself to check on the bucket. If you do the math, it averages out to around 50 gallons per day, exactly what the RO filter is rated for. The wastewater ratio is 4:1. For every gallon of RO water produced, four gallons go down the drain. I hate wasting water, and this feels wasteful to me. That said, when compared to distillation, the RO method is much easier on the environment since there is no heat involved. There are other RO systems available that produce a gallon more quickly and with less wastewater, but from what I understand, higher wastewater ratios generally result in higher-quality water. All in all, I recommend this product. It stopped the layer of solids from accumulating everywhere from the humidifier, and I can also make RO water for drinking if needed. Tips: Always use cold water, and never turn the faucet on full when you first connect the hose. Let the filter canisters fill slowly, then gradually increase the water pressure.
Review: Get a hose splitter and you can run this off of your laundry room water! - I purchased the RO Buddie 4-stage RO/DI 50 GPD filter. This is for my small freshwater setup which includes seven tanks of varying volumes with a total volume of just under 100 gallons. I went with the RODI and not just RO system because I am trying to decrease the alkalinity of my water. So far so good after filtering 10 gallons of RO/DI water. It's very easy to set up and my water parameters have come out excellent with zero PPM TDS and zero EC (see attached photos, the meter was calibrated today). I live in Coastal Georgia and have moderately soft water parameters from the tap at around 150 PPM TDS (total dissolved solids) with a significant amount of EC (electrical conductivity) due to the high amount of minerals in the water. So basically very low sediment but high mineralization and somewhat moderate GH and KH. I have had a hard time keeping my South American tanks at good parameters for my tetras to breed and this will help immensely if it continues to work as it has so far. A Few Tips: - tighten the deionization filter cap before you install, I had a small leak as mine was somewhat loose but that was easy to fix and find and I just tightened the cap of the actual filter body itself and the leak stopped. To do it correctly I took all the hoses out and tightened it that way so I would not torque the hose connections. - this can be run off of any hose or even many kitchen and bathroom sink setups if you take out the aerator from your faucet. I am personally running it off of my laundry room and it's running beautifully as there is both a supply of cold water and a drain for the wastewater. - if you're going to install it in your laundry room all you need is a t-joint hose splitter or some other sort of double hose splitter that fits the receptacle for your washing machines supply water and gray water drain (see attached photos of my setup, everyone's will vary and I had to measure mine specifically as there are a huge variety of hose splitters) - if you are are doing a laundry room setup like mine where you can mount it close to the washing machine then the amount of hose provided in the kit will be more than sufficient. However if you are doing some other sort of setup you may want to buy additional hose, as you will need not just the proper amount of hose for the treated water but also the appropriate length of hose for wastewater. You could of course use a bucket but if you want to appropriately drain it to a sink or drain, getting additional hose maybe necessary. - if you are using this for a freshwater setup like I am you must absolutely get an additive that will keep the GH and KH at appropriate levels. RODI water by itself will kill fish. - Read the darn instructions. For a cheap system like this they are actually fairly detailed and obviously written by somebody who speaks English fluently. - having a solid set of channel locks or a wrench that will fit into a small area, as well as Teflon tape for the female ends of the threaded connections, will help reduce the potential for leaks. I am on city water that withdraws from a river and and underground aquifer and it is at a fairly high PSI as I live only 2 mi from the treatment center. All in all I am really pleased so far as this is the least expensive system I could find. This would not be an appropriate system for drinking water as the pressure/supply would not be great enough to fill a glass in a reasonable amount of time. Right now I am averaging about 5 gallons of treated water every 90 minutes (around 80 GPD) which is far above the 50 gallons per day that the system rated for, although I expect that to eventually go down as the sediment and carbon filters begin to fill with debris. That said, I am currently probably experiencing closer to a 75 GPD or even 100 GPD system which got $70 is impossible to beat. As an added bonus when the RO finally wears out I can replace it with one of their 75 GPD or 100 GPD rated filters so long as I swap out the The 450cc flow restrictor for an 800cc flow restrictor, thus functionally increasing the output of the system. This will of course wear out the DI filter faster. I will update this review if anything changes but so far I am pleased. For some reason desertcart's AI wants me to comment on the noise level which is silly for a system of this low of a flow rate. If it's making any noise louder than a few gurgles and bubbling sounds that you can only hear when you are right next to it then there is probably something wrong with the system like over pressure or an incorrectly installed hose connection which is creating suction and/or air intrusion somewhere. So, tldr, it doesn't make any noise. In summary, it's a cheap effective system that took me about 20 minutes to install with just the parts in the box and the hose splitter I bought. Hard to go wrong at this price point. I would recommend this to anyone who needs a small amount of water for weekly or bi-weekly water changes and is trying to keep the GH and KH of the water column down (i.e. slightly acidic or neutral). note: The picture system has not been fastened to my wall yet nor have I done any hose management so bear that in mind as well.

## Features

- SUPERIOR WATER QUALITY: This Aquatic Life RO Buddie is a 4-Stage RO reverse osmosis system. Produce up to 50 gallons of filtered water per day with this 50 GPD RO reverse osmosis filter. This ro/di filter system for making aquarium water provides optimal filtration for your aquatic environment.
- MEMBRANE FILTRATION: The RO membrane filter in the reverse osmosis water filtration system reduces Total Dissolved Solids (TDS) from the water down to the ratio of 1 out of 10,000.
- EFFECTIVE SEDIMENT REMOVAL: The sediment filter in the RO water filtration system captures sand, silt, and more, which affect the quality and appearance of water.
- CARBON BLOCK FILTER: The carbon block filter in the RO water system eliminates chlorine and conditions water before it reaches the RO membrane.
- COLOR-CHANGING DEIONIZATION FILTER: The mixed bed deionizing resin in the RO reverse osmosis water filter employs Cation and Anion beads to remove any remaining TDS from the membrane-filtered water.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00204CQF6 |
| ASIN  | B00204CQF6 |
| Age Range Description | All Ages |
| Best Sellers Rank | #6,574 in Pet Supplies ( See Top 100 in Pet Supplies ) #16 in Aquarium Filters |
| Brand | Aquatic Life |
| Brand Name | Aquatic Life |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (6,414) |
| Date First Available | August 19, 2004 |
| Date First Available  | August 19, 2004 |
| Department | all ages, unisex |
| Department  | all ages, unisex |
| Global Trade Identification Number | 00810957010195 |
| Installation Type | Wall Mount |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 13.75 x 7.5 x 6 inches |
| Item Package Dimensions L x W x H | 16.07 x 10.08 x 5.39 inches |
| Item Weight | 3.9 pounds |
| Item model number | 540019 |
| Item model number  | 540019 |
| Manufacturer | Aquatic Life LLC |
| Manufacturer  | Aquatic Life LLC |
| Maximum Flow Rate | 180 Liters Per Day |
| Model Name | 540019 |
| Number of Items | 1 |
| Package Information | Cartridges |
| Power Source | Manual |
| Product Dimensions | 13.75"L x 7.5"W x 6"H |
| Product Dimensions  | 13.75 x 7.5 x 6 inches; 3.9 Pounds |
| Size | 50-Gallon Four stage |
| Special Feature | Compact, Portable |
| Specific Uses for Product | Active |
| Target Audience Keyword | fish |
| UPC | 810957010195 |
| Upper Temperature Rating | 105 Degrees Fahrenheit |
| Warranty Description | 1-Year Limited |

## Product Details

- **Brand:** Aquatic Life
- **Capacity:** 50 Gallons
- **Included Components:** RO Buddie Four Stage Reverse Osmosis System Cartridge
- **Installation Type:** Wall Mount
- **Material:** Sediment, Carbon, RO Membrane, DI Resin
- **Package Information:** Cartridges
- **Power Source:** Manual
- **Product Dimensions:** 13.75"L x 7.5"W x 6"H
- **Purification Method:** Deionization
- **Special Feature:** Compact, Portable

## Images

![Aquatic Life RO Buddie 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Units for Aquarium, 50 GPD - Image 1](https://m.media-amazon.com/images/I/71cDsgZkZfL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How often should I replace the filters?**
A: 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.

**Q: Can I use RO Buddie for drinking water?**
A: No

**Q: What is TDS, and why is zero TDS important?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice little unit!
*by B***D on March 2, 2026*

With very few exceptions, we’ve been really happy with this RO system. It’s compact, lightweight, affordable, and incredibly easy to assemble and maintain. A few months ago, we bought a humidifier and filled it with Brita‑filtered water. After a couple of weeks, we noticed a fine layer of mineral dust coating the kitchen, living room, and even the inside of our cabinets. After some research, we learned that Maryland’s water contains an unusual amount of salts and minerals that the Brita pitcher—and the humidifier’s own filter—simply can’t remove. Our options were to either buy distilled water constantly or utilize an RO system. Since hauling gallons of water up three flights of stairs wasn’t appealing, we chose this unit to produce near‑distilled‑quality water right at home. The unit arrived on time and in excellent condition. After watching a setup video and reading the instructions, assembly was a breeze. No leaks, no errors, no issues at all. Just be sure to cut the tubing exactly as shown in the video—improper cuts can lead to crimping and unnecessary swarf. Also, follow the two‑step flushing process: the first flush is done without the RO filter installed, and the second 30‑minute flush is done with the RO filter in place. Once that’s complete, you’re ready to go. Since we live in an apartment, using the kitchen faucet to produce our RO water was our only practical option. It works great, and although it’s a slight inconvenience to move the RO system from the kitchen sink to the bathroom (to drip in the other sink), it’s still far better than hauling 15 gallons of water up three flights of stairs every week. We then made a nice wooden stand for the RO system to keep it vertical and from lying on the countertops. Here are a few exceptions. It’s quite slow—about 27 minutes to produce a gallon of RO water. Because this ties up the kitchen sink, RO production has to be scheduled, and I always set a timer to remind myself to check on the bucket. If you do the math, it averages out to around 50 gallons per day, exactly what the RO filter is rated for. The wastewater ratio is 4:1. For every gallon of RO water produced, four gallons go down the drain. I hate wasting water, and this feels wasteful to me. That said, when compared to distillation, the RO method is much easier on the environment since there is no heat involved. There are other RO systems available that produce a gallon more quickly and with less wastewater, but from what I understand, higher wastewater ratios generally result in higher-quality water. All in all, I recommend this product. It stopped the layer of solids from accumulating everywhere from the humidifier, and I can also make RO water for drinking if needed. Tips: Always use cold water, and never turn the faucet on full when you first connect the hose. Let the filter canisters fill slowly, then gradually increase the water pressure.

### ⭐⭐⭐⭐⭐ Get a hose splitter and you can run this off of your laundry room water!
*by D***N on October 25, 2025*

I purchased the RO Buddie 4-stage RO/DI 50 GPD filter. This is for my small freshwater setup which includes seven tanks of varying volumes with a total volume of just under 100 gallons. I went with the RODI and not just RO system because I am trying to decrease the alkalinity of my water. So far so good after filtering 10 gallons of RO/DI water. It's very easy to set up and my water parameters have come out excellent with zero PPM TDS and zero EC (see attached photos, the meter was calibrated today). I live in Coastal Georgia and have moderately soft water parameters from the tap at around 150 PPM TDS (total dissolved solids) with a significant amount of EC (electrical conductivity) due to the high amount of minerals in the water. So basically very low sediment but high mineralization and somewhat moderate GH and KH. I have had a hard time keeping my South American tanks at good parameters for my tetras to breed and this will help immensely if it continues to work as it has so far. A Few Tips: - tighten the deionization filter cap before you install, I had a small leak as mine was somewhat loose but that was easy to fix and find and I just tightened the cap of the actual filter body itself and the leak stopped. To do it correctly I took all the hoses out and tightened it that way so I would not torque the hose connections. - this can be run off of any hose or even many kitchen and bathroom sink setups if you take out the aerator from your faucet. I am personally running it off of my laundry room and it's running beautifully as there is both a supply of cold water and a drain for the wastewater. - if you're going to install it in your laundry room all you need is a t-joint hose splitter or some other sort of double hose splitter that fits the receptacle for your washing machines supply water and gray water drain (see attached photos of my setup, everyone's will vary and I had to measure mine specifically as there are a huge variety of hose splitters) - if you are are doing a laundry room setup like mine where you can mount it close to the washing machine then the amount of hose provided in the kit will be more than sufficient. However if you are doing some other sort of setup you may want to buy additional hose, as you will need not just the proper amount of hose for the treated water but also the appropriate length of hose for wastewater. You could of course use a bucket but if you want to appropriately drain it to a sink or drain, getting additional hose maybe necessary. - if you are using this for a freshwater setup like I am you must absolutely get an additive that will keep the GH and KH at appropriate levels. RODI water by itself will kill fish. - Read the darn instructions. For a cheap system like this they are actually fairly detailed and obviously written by somebody who speaks English fluently. - having a solid set of channel locks or a wrench that will fit into a small area, as well as Teflon tape for the female ends of the threaded connections, will help reduce the potential for leaks. I am on city water that withdraws from a river and and underground aquifer and it is at a fairly high PSI as I live only 2 mi from the treatment center. All in all I am really pleased so far as this is the least expensive system I could find. This would not be an appropriate system for drinking water as the pressure/supply would not be great enough to fill a glass in a reasonable amount of time. Right now I am averaging about 5 gallons of treated water every 90 minutes (around 80 GPD) which is far above the 50 gallons per day that the system rated for, although I expect that to eventually go down as the sediment and carbon filters begin to fill with debris. That said, I am currently probably experiencing closer to a 75 GPD or even 100 GPD system which got $70 is impossible to beat. As an added bonus when the RO finally wears out I can replace it with one of their 75 GPD or 100 GPD rated filters so long as I swap out the The 450cc flow restrictor for an 800cc flow restrictor, thus functionally increasing the output of the system. This will of course wear out the DI filter faster. I will update this review if anything changes but so far I am pleased. For some reason Amazon's AI wants me to comment on the noise level which is silly for a system of this low of a flow rate. If it's making any noise louder than a few gurgles and bubbling sounds that you can only hear when you are right next to it then there is probably something wrong with the system like over pressure or an incorrectly installed hose connection which is creating suction and/or air intrusion somewhere. So, tldr, it doesn't make any noise. In summary, it's a cheap effective system that took me about 20 minutes to install with just the parts in the box and the hose splitter I bought. Hard to go wrong at this price point. I would recommend this to anyone who needs a small amount of water for weekly or bi-weekly water changes and is trying to keep the GH and KH of the water column down (i.e. slightly acidic or neutral). note: The picture system has not been fastened to my wall yet nor have I done any hose management so bear that in mind as well.

### ⭐⭐⭐⭐⭐ Compact RO/DI System That’s Small but Effective
*by M***O on January 2, 2026*

Size & Setup: The Aquatic Life RO Buddie 4-stage RO/DI unit is compact and easy to set up, making it ideal for smaller spaces or hobbyists who don’t need a large permanent system. Performance & Water Quality: Despite its size, it’s very effective, producing clean, high-quality RO/DI water suitable for aquariums and other uses. Maintenance Considerations: Because of the smaller filters, you’ll need to change the cartridges more frequently, depending on your incoming water quality and total gallons processed. Final Verdict: If you want a small, effective RO/DI system, this unit does the job well. Just be aware of the more frequent filter changes due to its compact design.

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-03-12*