NOTE: As an Amazon Associate, I earn from qualifying purchases.  Learn More.

APEC ROES-50 Top Tier Reverse Osmosis System

APEC ROES-50 Top Tier Reverse Osmosis System Review

The APEC ROES-50 is a 5-stage reverse osmosis system capable of removing more than a thousand contaminants from water.

The five filters handle everything from fine sediment to harmful microorganisms and heavy metals.

It’s a great choice if you are looking for an affordable but high-performance RO system to supply clean and safe drinking water for your family.

You can install the system in about a couple of hours without having to call a pro. All the parts and fittings you need are included.

Read on for our full review of the APEC ROES-50 Reverse Osmosis System.

If it isn’t quite what you are looking for, we have reviewed other great RO systems in our recently updated best reverse osmosis filters buying guide.


  • Great value –excellent performance for less money compared to premium models.
  • 5-stage system removes almost all impurities from water –delivers safe, healthy and great tasting water.
  • Easy to install and maintain.
  • Filters last 2X long compared to other filters in the same price range.
  • Affordable replacement filters.


  • No remineralization stage.
  • No booster pump –low flow rate and high water wastage ratio.

Product Specifications

Can I Connect the APEC ROES-50 to My Fridge or Icemaker?

Yes, you can. You’ll have you buy the APEC icemaker kit. It costs around $18.


  • Number of stages: 5
  • Production Capacity: 50 gallons per day (GPD)
  • Wastewater to pure water ratio: 3:1
  • Reserve tank capacity: 3.2 gallons
  • Booster pump: no
  • Remineralization stage: no
  • Filter lifespan: 6-12 months
  • Membrane lifespan: 2-3 years
  • Installation kit: yes

Best Features 

apec roes-50

1. 5-Stage Filtration System Design

Which APEC ROES-50 Filters Do You Need to Replace? 

  • Sediment filter (6-12 months)
  • Two carbon filters (6-12 months)
  • RO membrane (2-3 years)
  • Post-filter (2-3 years)

The APEC ROES-50 features 5 filtration stages, each of which targets specific contaminants.

This multi-stage process has two main advantages:

  • It enhances filtration performance. 5 filters remove more impurities than one or two filters.
  • It prolongs filter and membrane life. If the RO membrane handled all the impurities, it would not last long. Staggering the filtration process spreads the burden across several filters, extending the life of each.

Here are the five stages in the ROES-50.

5-micron sediment filter: Filters out large suspended particles including sediment, dirt and rust. It also protects the carbon filters and the RO membrane from clogging.

10-micron carbon block filter: Reduces chlorine, organic chemicals and water turbidity/cloudiness.

10-micron carbon block filter:A second activated carbon filter removes residual tastes and odors.

High rejection RO membrane: This is the most important filter. It deals with the toughest contaminants including heavy metals, biologicals and dissolved solids.

Post-filter: The final carbon filter gives the water a final polish just before it comes out of the faucet. This removes residual tastes and odors, ensuring you get fresh tasting water.

2. Excellent Filtering Performance

How Many Gallons of Pure Water does the APEC ROES 50 Produce Per Hour and Per Day?

About 1.8 gallons per hour and 50 gallons per day. This is lower than the industry average of 75 GPD.

Despite the lower price tag, the APEC ROES-50 is just as good as pricier RO systems when it comes to filtering performance.

It removes 99% of water contaminants including bacteria, viruses, heavy metals, chemicals, sediment and chlorine.

The double carbon blocks are especially effective at freshening up the water by removing substances that affects its taste and odor.

The RO membrane then ensures that your water is safe to drink by removing harmful heavy metals and biologicals.

Even if your water is not treated – e.g. well water –you can still use this RO system. It actually does a better job than chlorine removing bacteria, viruses, cysts and protozoa.

If you use city water, the system will get rid of residual microorganisms, any chemicals (such as fluoride) and heavy metals in the water as well as the unpleasant taste of chlorine.

Because the purified water is guaranteed safe and tastes great, you can replace your bottled water with it. You’ll save money and the environment too.

3. Average Water Efficiency

The main reason why the APEC ROES-50 is cheaper than other RO systems despite having comparable filtering performance is that it is less efficient.

Top RO models have a wastewater to pure water ratio of 2:1 or 1:1.

ROES-50’s ratio is 3:1, meaning 3 gallons of water are drained for every gallons of pure drinking water.

That may seem like a lot of water but it’s less than the amount you use per day for showering, flushing or laundry. If you use your RO system for drinking water only, the 3 gallons are lost at a slower rate.

Compared to the industry average, which is 4:1, the ROES-50’s 3:1 ratio is not too bad.

If you still feel like that’s a lot of water, you have two options.

  • Recycle the wastewater. Because chlorine and harmful chemicals have been removed (they are trapped in the filters), the wastewater is safe for gardening and outdoor use.
  • Install a booster pump. A booster pump will increase water flow rate and reduce the amount of water wasted. You can get a booster pump from their official website. They sell both the electric kind and the non-electric permeate pump. 

Installation & Maintenance

apec top tier 5-stage ultra safe reverse osmosis drinking water filter system

The APEC ROES-50 is an undercounter water treatment system.

It’s designed for easy DIY installation. You don’t need to call a plumber or buy any additional parts.

With basic tools, including a drill for installing the faucet, you’ll have the system ready to go in two hours.

How to Install the APEC ROES-50

  • Unwrap the three pre-filters and insert them into the filter housings. Make sure you put each filter into the right stage as instructed in the manual. The RO membrane comes pre-installed.
  • Tighten the filter housings onto the main filter frame using the included wrench. Be careful not to over tighten.
  • Place the system on the floor under the sink. There’s no need to mount it. This makes installation and filter replacement easier and quicker.
  • Don’t set up the tank under the sink immediately as it will get in your way. First,connect the filter system to the cold water supply using the feed water adapter and one of the colored tubes.
  • Drill a hole for drainage and install the drain saddle.
  • Drill a hole in the sink and install the new faucet. If there’s already a spare hole on your sink, no need to make a new one.
  • With everything in place, install the valve on the tankand position the tank under the sink. Now you are ready to complete all connections.
  • Refer to the manual for guidance on where each tube goes.
  • Flush the system as instructed in the manual.

Note: If you don’t have enough space under the sink, you can install the RO system anywhere else 10-15 feet away from the sink. Just make sure you have access to a cold water line and a drainage line. Most people find the basement to be perfect when the under-sink space is inadequate.

Filter Replacement 

apec roes 50

How Much are Replacement Filters for the APEC ROES-50 RO System? 

The three pre-filters are available as a set for around $30.  The in-line post-filter is available separately for around $15.  The RO membrane costs about $40.

The first three pre-filters should last about one year if you use city water. If you receive hard city water or well water, the manufacturer recommends replacing the filters every 6 months.

Replacing the filters is easy. Use the included wrench to open the three filter housings and remove the old filter cartridges.

Wash the housings with a gentle soap and sanitize the system using mild bleach before putting in the new filters.

 The membrane and the post filter will last 2-3 years. Replace both after 2 years if you receive well water or 3 years if you use city water.

What We Like The Most about the APEC ROES-50 RO System

essence roes-50

Good value for money: It’s missing some features and the daily production capacity could be higher, but overall, the APEC ROES-50 delivers more value for your money compared to other RO systems.

Affordable replacement filters: It’s not just the main system that is priced affordably; the replacement filters are affordable as well, making maintenance pocket-friendly.

Easy DIY installation: Though installation takes some time, it’s something you can do on your own. The manual has very clear and detailed instructions. The manufacturer also has some helpful installation videos on their website.

What We Don’t Like about the APEC ROES-50

apec roes 50

1. Lower than Average Production Capacity

If you want to use RO purified water for more than just drinking, the ROES-50 may not be the best choice for you.

It has a production capacity of 50GPD, which is significantly lower than the industry average of 75GPD.

2. No Booster Pump

If you want to enjoy better water pressure from the faucet, you’ll have to buy a booster pump separately.

Without the pump, it’ll be tedious to fill large water bottles.

The lack of a booster pump also increases the amount of wastewater.

3. No Mineral Water 

If you want the same spring-like taste you get from your bottled mineral water, the APEC ROES-50 is not for you.

It lacks a remineralization stage, meaning the pure water comes out slightly acidic and devoid of minerals.

But most people don’t mind the taste and find it just as good as bottled water.

The Home APEC ROES-50 Top Tier Reverse Osmosis System Is Perfect For You If...

  • You are looking for high-performance but pocket-friendly RO system.
  • You want an RO system that is easy and affordable to maintain.

Avoid Buying This One If…

  • You want an RO system that produces mineral water.
  • You want an RO system with minimal water wastage.

Our Bottom Line

APEC ROES-50 Top Tier RO System

We love products that deliver more for less and the APEC ROES-50 is one of our favorites.

You enjoy the same great filtering performance as a premium system for less money.

The ROES-50 is an all-round money-saving RO system.

It saves you the cost of bottled water, saves you the cost of pricey filters and you also get a great bargain on the system itself.
Ed Carmichael

About the Author Ed Carmichael

Ed is a water specialist in Tampa, FL. He built to help his friends and family learn about DIY solutions to common water quality issues in the home.

follow me on:

Leave a Comment: