Search  for anything...
Aquatic Life

AQUATICLIFE Aquatic Life RO Buddie Plus DI Four Stage Reverse Osmosis Deionization Unit 50 GPD

    • Based on 5,572 reviews
Condition: New
Checking for product changes
$69.99 Why this price?

Buy Now, Pay Later

As low as $11.67 / mo
  • – 6-month term
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

This item is eligible for return within 30 days of receipt

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.
Fulfilled by Amazon
Arrives Saturday, Nov 23
Order within 2 hours and 35 minutes
Available payment plans shown during checkout

Size: 50-Gallon Four stage


Features

  • ZERO TDS WATER- Produce up to 50 gallons of zero TDS water every 24 hours at an affordable price with the RO Buddie plus DI model, The RO Membrane will remove up to 98 percent of the TDS in water and the DI Mixed Bed Resin will remove the remaining TDS
  • SEDIMENT REMOVAL - The five-micron sediment filter cartridge traps particulate matter like dirt, silt, and rust with will affect the taste and appearance of the water
  • CARBON FILTRATION - The five-micron activated carbon reduces chlorine and conditions the water prior to the RO membrane
  • MEMBRANE FILTRATION - The RO membrane reduces impurities known as Total Dissolved Solids (TDS) from the water down to a ratio of 1 out of 10,000 of a micron, reducing arsenic, lead, parasitic cysts, copper and more
  • DEIONIZATION - The color-changing deionization mixed-bed resin removes the remaining TDS from the membrane filtered water

Brand: Aquatic Life


Special Feature: Heavy Duty


Product Dimensions: 13.75"L x 7.5"W x 6"H


Package Information: Unit


Installation Type: Freestanding


Power Source: Corded Electric


Item Weight: 3.9 Pounds


Model Name: 540019


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 13.75 x 7.5 x 6 inches; 3.9 Pounds


Item model number ‏ : ‎ 540019


Date First Available ‏ : ‎ August 19, 2004


Manufacturer ‏ : ‎ Aquatic Life LLC


Customer Reviews: 4.6 4.6 out of 5 stars 5,572 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 23

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews

    • Easy to assemble and use. Took my water from 324 TDS to 16
Size: 50-Gallon Three stage
Review Image by John Hawkins John Hawkins
If you buy this RO system I recommend you go to the Aqualife website and watch the YouTube video on setting it up. But basically run it for 5 minutes without the RO membrane filter to clear the carbon filter then run it for 30 minutes with the RO membrane installed before collecting water. I've only used it twice so far but after the intial setup it is super easy to collect RO water. The speed is water dependent but I collected 10 gallons in a little over 100 minutes. I had my water tested a couple years ago professionally by Ward Labs and got another test just to baseline the filtered water out of the RO filter. The attached picture is of my two different water tests. My water while high in bicarbonate wasn't exactly horrible to begin with but I'm happy with the system's ability to get me down to 16 TDS. I brew beer at home and while I had my water tested I had some issues with variability in the water and difficult adjusting my water pH with acid. So I figured going to RO filtered water was worth the cost at least to attempt to even out my water profile. I've only brewed once with RO water from this system but after calibrating my pH meter I can tell you I nailed my mash pH which was not always the case before. ... show more
Reviewed in the United States on September 2, 2023 by John Hawkins John Hawkins
    • Chloramine warning
Size: 50-Gallon Three stage
I quote from the manual that came with the kit: "FAILURE TO USE A CHLORAMINE FILTER WILL QUICKLY DESTROY YOUR RO MEMBRANE & PROVIDE POOR FILTERED WATER QUALITY" It would have been nice to know this beforehand. My tap water has chloramines (I live in Oklahoma), as do MOST municipal water systems. So now I have to buy their $50 prefilter, and wait for it to get here before I can even test the RO filter. UPDATE: Got the Carbon Plus filter installed. I am very happy with this rig. TDS tapwater: 160 TDS waste stream: 250 TDS filtered stream: 6 Best of all, I'm getting a gallon of filtered water every 10 minutes. I know this can't last, output will be reduced as the filters plug up, but for now this is great. Minus 1 star for not having a chloramine warning in the ad. ... show more
Reviewed in the United States on October 6, 2023 by Michael
    • We use this to filter a 75 gallon fish tank, weekly.
Size: 50-Gallon Four stage
After testing the water quality after over a year, it still does a wonderful job of removing the junk. The old one was still working, only problem was a hole had developed in the hose and caused it to leak. Since you can’t replace just the hose we had to replace. The one we replaced was used over a year, I’m expecting to get well over that with this one if we can manage not to pierce the hose again. One less star for the inability of replacing the hose. The lock in place feature is great when keeping things in place, but really sucks when you need to replace. Outside of that one downside, this does what it’s supposed to. I will purchase again when the time comes. ... show more
Reviewed in the United States on September 23, 2023 by Cr
    • I BLEW IT UP!!!
Size: 50-Gallon Four stage
Be warned it works amazingly, unless you are a dodo like me. When I bought this I hooked this up under the sink and got amazingly perfect water for my reef tank. I didn't know what I had been missing out on, all my corals started doing better within days of using the water. THEN BOOM water was gushing everywhere from under my sink and the color changing Deionization beads where everywhere! Later I read the instructions and found out that this product is not ment to be used under pressure. This is a great option IF you intend to take this out of storage and hook it up when you want water, but if you want something that you can just turn on look for one intended to be installed permanently to the house. ... show more
Reviewed in the United States on September 19, 2023 by Samuel Rippe
    • Fantastic entry-level or back-up portable unit
Size: 50-Gallon Three stage
Review Image by Alice Wakefield Alice Wakefield
Review Image by Alice Wakefield Alice Wakefield
I was attracted by the price, the small size, and ease of use of this system, and I'm more than happy with its performance. However, not much information is provided beyond how to hook it up and turn on the water which a third grader could do, so I'll attempt to answer some questions that people may have who are just considering one. If you're already familiar with RO systems here's my bottom line and you can skip the rest. Finally, an affordable, tankless, three-stage system that produces 95%-99% pure water like the big boys. There's also an optional DI filter for those with reef tanks who want it 100% pure I use it primarily to mix with tap to soften and lower the ph in my freshwater tanks, so 20 gallons of RO per week is about average, which I usually produce in one sitting, so to speak. Easily 12 hours, but hidden in patio furniture and virtually silent, you will want to get a timer of some kind. Trust me. It's sleek, light in weight, with a built-in mounting bracket. I have yet to replace any, but it takes a standard sized membrane filter, with the two disposable auxiliary filters around $10. ea. . If you live in a perennially parched area like me where the term "waste water" is frowned on, you can use the excess water on trees, shrubs, or plants, any day of the week. There appears to be nothing wrong with it but a higher TDS, and with so much extra water my plants are thriving. win/win. "Don't I need a pressurized tank?" Not necessarily. I suggest holding off on a tank for now, at least until you decide where to put all the cleaning supplies and toxic chemicals under your sink and have thoroughly cleaned out the cabinet. Hopefully you're comfortable with working on your back in cramped areas. The tank adds a level of complexity and a bloated space-hog presence, being twice the size of its actual water volume. For the moonshine method you'll also need: 1. 10 feet or more of 1/4" plastic tubing for potable water use. 2. A couple of large clean buckets or containers. Keep in mind the waste water bucket will fill about four times faster than the pure. For large batches I recommend a 5 gallon bucket (with lid, if water will be stored) and a 20 gallon waste container. 3.. A TDS meter isn't mandatory unless you plan to use in aquariums, but they're cheap and handy for determining when your filters need changing. "Where else can I put it?" I keep mine outside on the patio, except in very cold weather. It works best with tepid water. It comes with a standard 3/4" garden hose adapter and fits perfectly inside of a storage/seat enclosure. The waste water goes into a large Rubbermaid tote or through a longer hose I rigged up for to direct watering of plants. During cold weather it can be brought in to a garage, utility room, laundry sink, bathtub, or anywhere with water hookups. Well, maybe not the toilet. When it's cold and my plants don't need the excess, admittedly 60-80 gallons of waste will go down the drain. "What's the difference between RO and my regular filtered water for drinking?" RO water is what's left of tap after virtually everything has been stripped out of it, leaving the water pure and basically sterilized. The technology is also used to desalinate sea water for drinking. Your filters can help with contaminants, chlorine, sediment, etc. but they have no effect on TDS, or Total Dissolved Solids, the minerals which make water hard and leave calcium deposits, but also make water taste good. Personally I don't care for the taste of RO and it doesn't quench my thirst like mineral water. If considering RO primarily for drinking, I suggest buying a gallon of RO or distilled first to try it out. Some like it, but It may be overkill. Two scientifically proven methods for lowering TDS are - 1) through a special membrane filter, and 2) salt, commonly used in whole-house water softeners. "What's the difference between water softeners and RO systems?" Size, for starters. And method. Home water softeners are large electrical appliances that use salt to remove calcium and magnesium. This does soften the water but the process adds sodium. I've been told by experts that this water is too "wonky" for fish to live in for long. Reverse Osmosis systems are smaller and work on water pressure alone, producing at a slow-trickle pace. The process would be too slow and costly for whole-house applications. Many people will use both, with the softener doing the heavy lifting and RO the ultra-fine filtering. "What else can I use it for?" Besides the fish stuff, I keep some in the fridge for guests, cooking, or using in ice-molds. The ice comes out clearer An iron, evap cooler, coffee maker, mister, hair curlers, vaporizer, or anything that uses water can benefit from a longer life. I also use it in my outdoor fountain, for rinsing glassware, hand washables, and sometimes machine washables by adding a bucket or two. Occasionally I'll wash my car or hair with it. A rain barrel with a spigot would be an ideal holding tank, but right now the rubbermaid totes are working. ... show more
Reviewed in the United States on September 21, 2016 by Alice Wakefield Alice Wakefield

Can't find a product?

Find it on Amazon first, then paste the link below.