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Aquapurion 5-Stage Reverse Osmosis System | APRO-5050

  • Aquapurion 5-Stage Reverse Osmosis System | APRO-5050
  • 5 Stage Reverse Osmosis Filter Pack
  • Standard Ro faucet

Aquapurion 5-Stage Reverse Osmosis System | APRO-5050

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Availability: Typically In Stock

Regular Price: $281.00
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Economy-Priced 5-Stage Reverse Osmosis System With 50 GPD Membrane

If you are looking for a high quality 5-stage reverse osmosis system, but don’t want to break the bank, then the US Water Systems 5-Stage 50 GPD RO system is the answer. It installs neatly under your kitchen sink,  uses all NSF, WQA and FDA Certified components and has a 2-year warranty.

Remember this - Most reverse osmosis systems have a 1-Year Warranty. Some companies don’t even publish their warranty. What are they trying to hide? Why settle for less? The AquaPurion reverse osmosis system has a 2-Year Warranty. The choice is clear: AquaPurion is the best buy!

High-Performance 50 GPD 5-Stage Reverse Osmosis System:

  • STAGE 1- 5-Micron Sediment Filter: Reduces Dirt, Sand, and Rust
  • STAGE 2- Carbon Block Filter: Reduces Chlorine Taste and Odors
  • STAGE 3 - 2nd Carbon Block Filter for Added Protection
  • STAGE 4- 50 GPD RO Membrane: Separates Purified Water From Rejected Impurities Down to 1/10,000 Micron
  • STAGE 5- Granular Activated Carbon Final Polishing Filter Enhances the Taste of the Water
  • NSF Certified 4.5 Gallon Storage TankAverage Actual Capacity: 1.5 to 3 Gallons (depending upon pressure)

Does not contain BPA. The BPA scare was directly due to information coming from some polycarbonate plastic materials. These are the hard shatter-resistant clear (or colored) drinking water bottles and things like baby bottles. Typically you will not see any BPA in plastics like polypropylene or PE as it is not one of the plastics used in the processing of the material. NSF does scan for BPA, so if there was elevated levels in the product it would fail the material extraction test.

A 5-Stage Reverse Osmosis System removes or reduces the following contaminants

  • Arsenic
  • Barium
  • Cadmium
  • Chlorine
  • Copper
  • Cryptosporidium
  • Cysts
  • Flouride
  • Giardia
  • Hexavalent Chromium (6)
  • Lead
  • Prechlorate
  • Radium 226/228
  • Selenium
  • TDS
  • Toxoplasma/Entamoeba
  • Turbidity


  • 2-Year Warranty (excludes filters, membrane is pro-rated)
  • Utilizes ALL NSF & FDA Approved Components
  • 4.5 Gallon NSF Certified metal tank with NSF liner (BPA Free)
  • NOTE: Tank can lay on its’ side
  • Utilizes Quick-Connect (Push-in) Fittings
  • Includes Automatic Shut-Off Valve (ASO) to shut down system when tank is full

This system includes everything necessary for an under-sink installation, including

  • All Filters and Membrane
  • All Tubing
  • John Guest Inlet Valve: Most reverse osmosis system use cheap “self-piercing” saddle valves or awkward-to-use-shutoff valves which tend to leak and are hard to turn. The John Guest ASVPP1LF is flat out the best shutoff valve in the business - it is “professional-grade” and we include it on all of US Water Systems' 5-stage reverse osmosis system that we sell.
  • Tank Shut-off Valve
  • Long-Reach Chrome Lead-Free Non-Air Gap Faucet
  • All Fittings Necessary for Installation
  • Installation Manual
  • On-Line Installation Videos
  • Telephone Tech Support 7 days a Week

Typical Contaminant Removal

Specs / Warrantty

Availability Typically In Stock
RO System Type Undersink
Number of Stages 5
Dimensions RO Module Size: 17" w x 18" h x 6" d

Tank Size: 11" d x 16" h
Warranty 2 year
Manufacturer US Water Systems

Customer Reviews

Excellent customer service and product Review by Mara
The RO Systems was delivered promptly.
Although, a tiny glitch with the system - problem with automatic shut off valve - prevented a smooth kick-off. From experience, such a scenario could have turned into a nightmare if one had to deal with bad customer after-sale service. But US Water Systems customer service reps promptly resolved the issue. Deservingly, they get a 5 star.
And the product - I'm not in any way disappointed.

(Posted on 1/30/14)
Compares to Rainsoft unit for $5,000! Review by 4choice
This is the exact unit. My friend showed me the bill for their Rainsoft. I could not believe they paid $5k!!! (Posted on 1/23/14)
Great system! Review by Travis
If you dont have a RO system you should get one! I have had this one for over a year and love it. This is the only water I drink at home. Easy to install and made in the USA! (Posted on 12/7/13)
Great product Review by Anthony
I researched many web sites and basically they all sell the same product. Just with a different name on it. This one was the the best for the price I could find. I've had mine for about two years now and extremely happy with it. Came back for replacement filters and to look at more stuff. (Posted on 11/27/13)
East installation, great filter system Review by Unknown
We have had this system for almost a year now. Purchased it to replace/upgrade 4-stage RO system that local professional company had installed. They wanted almost $1000.00 to remove and install a new unit with a 1 year warranty. After a lot of research, ordered this one instead. Fast shipment, great customer service and had it installed within 25 minutes. Love it and get great, filtered water! (Posted on 10/30/13)
Thanks guys. Review by J.Murphy
I bought a 5 stage Aquapuron RO unit to replace an older unit. The flow on this new unit is much better than the old one and the taste of the water is terrific. My coffee and iced tea are much better. Also, I had to call in with my non-tech approach to king questions. The staff was knowledgeable and patient. Thanks, guys. (Posted on 10/30/13)
helpful Review by Sally
Very helpful in answering pre-sales questions and assisting us in selection. (Posted on 10/30/13)
Great Review by gil
Great customer service reps on phone. Nice people. (Posted on 10/30/13)
So easy to install!!!! Review by Alcheramie
I received my RO system 5050 today, everything was neatly packaged and present to start installing. I watched the video and on my 2nd time watching.. I would pause and complete a step. I am a 37 year old female with no plumbing experience. I'm handy and like to do small things around the house but never was brave enough to mess with plumbing! I just can't believe how easy this was! I had this system ready in 45 mins. I did not have Teflon tape and had to quickly run to a hardware store and pick it up. I purchase the ice maker hookup also and that was very easy as well! No leaks so far and filling the tank for the 2nd flushing.
My mom had one installed about 5 months ago and she paid 800.00!! (Posted on 10/30/13)
Customer for life Review by Jesus
The system was very easy to install. The "how to install" videos made it a breeze. The only concern I have with the system is the relatively slow flow of the water out of the drinking faucet. Not sure adapting a larger thicker water supply line might resolve that issue. Other then that, we love our reverse osmosis water system.... Not sure why it took us so long to decide to install this unit in our home. It'll save us quite a bit of money compared to the water jugs we used to buy a weekly basis. We'll keep an eye on future specials from US Water System's other products such as water softener and sediment filter system. US water Systems, you have a customer for life.JR from McHenry, IL (Posted on 10/30/13)
Will Review by Better than expected
We live out in the country and have well water. I recently checked our water using ICP analysis at my lab that I work at. The arsenic results were alarming at 26 ppb. Luckily we buy our drinking water from a nearby filtered vendor. We still use the water from our well for the ice maker. I bought the 5 stage reverse osmosis system mainly for the ice maker. I checked the results today and now I'm happy to report that the arsenic results are less than 1 ppb now. According to the specs on the system I would say this system is working as it should. Only reason I'm giving it 4 stars is I haven't had it for very long. System was fairly easy to install. Water taste great as well. (Posted on 10/30/13)
Steve Review by I rank the product very favorably
I purchased an APRO 5050 unit recently. Overall I rank the product very favorably. I give it four stars out of five. The reason I did not award it five stars is because I encountered the following small problems: The initial shipment included the wrong size angle valve. My initial package included a 3/8x3/8x3/8 valve instead of the required 3/8x3/8x1/4 valve. However customer service quickly sent me the correct size valve although this delayed my installation by a week. The second problem was ensuring that the fittings did not leak. Ultimately I got the fittings to quit leaking by increasing the teflon tape wrapping thickness to make the threaded fittings fit tighter. Otherwise I found the installation experience to be very easy and quickly accomplished. The improvement in drinking water quality is remarkable. Everyone agrees that the water is so much more enjoyable to drink now than it was before, even our cats think so. I'm very pleased with my purchase and with US Water Systems. (Posted on 10/30/13)
Works better than expected. Review by Bill
Puts my old whirlpool wher 12 to shame. The whirlpool couldn't fill a coffee pot and lowes stop carrying the membrane for it. The only problem I encountered with the aqua 5050 is I couldn't use the john guest water fitting because the diameter is to small to fit older homes. Went to hardware store and put a ball valve together to solve that problem. The aqua system lowered my San Antonio water Total dissolved solids from 283 to 10. The water taste good, ice is clearer, tea is great. Coffee taste real sharp takes some getting used too with the effects of lime stone. removed. (Posted on 10/30/13)

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