APEC ROES-50 Reverse Osmosis

APEC ROES-50 Reverse Osmosis Review (2022)

Reverse osmosis filters are among the most sophisticated filtration systems. The APEC ROES-50 Reverse Osmosis filter is one of the best-performing products in the reverse osmosis filtration category.

It employs a 5-stage filtration to ensure you have a constant supply of healthy, clean, great-tasting water. In addition, it offers premium quality at competitive pricing.

This article reviews APEC ROES-50 Reverse Osmosis water filter, including a detailed look at its features, pros, cons, care, and maintenance. Read our APEC reverse osmosis reviews to find out if it is a good fit for you.

APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System
  • Supreme quality - designed, engineered, and assembled in USA to guarantee water safety & your health. WQA certified to provide unlimited clean, refreshing crisp tasting water superior to bottled water

Product Specification

  • Model Number – ROSE-50-A
  • Dimensions – 16 X 5.25 X 17.5 inches
  • Weight – 25 pounds
  • Pressure – 40-85 psi
  • Warranty – 1 Year


5-Stage Filtration

One of the most outstanding features of the APEC ROES-50 Reverse Osmosis filter is its 5-stage filtration system. Each stage of this osmosis system ensures that the water is purified to the highest quality and offers a great taste.

This filter removes up to 90% of contaminants from your tap water, including bad taste, odor, chemicals, sediments, heavy metals, and hormones. In addition, it gets rid of over 1000 chemical and metal contaminants.

The 5 filtration stages constitute of the following:

1st Stage – Sediment Filter

The 5-micron sediment filter is made of polypropylene. As the first filter, it removes sediments and fine particles from the water. For example, silt, rust, dust, scale, soil, and any other large contaminants that are visible. The filter helps to prevent sediment build-up and clogging in the subsequent filtration units.

2nd Stage & 3rd Stage – Carbon Block 1 and Carbon Block 2

This water filter system is fitted with two activated carbon block filters to maximize chlorine and chemical removal. The blocks have a large surface area which increases contact time with the water to ensure optimal water purity and increases the lifetime of the filters and membranes.

The first carbon block is 5-microns and removes contaminants such as bad odors, foul taste, VOCs, chlorine, chloramines, and other chemical contaminants. The second one is 10-microns and is designed to eliminate any bad odors, foul taste, VOCs, chlorine, chloramines, and other remaining chemical contaminants that may have managed to get past the first block.

4th Stage – High Rejection RO Membrane

In stage 4, reverse osmosis comes into play. The stage 4 filtration unit is fitted with a 0.0001-micron Thin-film composite (TFC) reverse osmosis system membrane to remove a wide range of harmful contaminants. For example, bacteria, viruses, lead, fluoride, radium, VOCs, chromium, chlorines, arsenic, and many more. The RO membrane has a 99% total dissolved and high contaminant rejection rate.

5th Stage – Refining Coconut Carbon Filter

The last filtration unit is a 5-micron coconut shell carbon filter that also serves as a storage tank. It gets rid of any residual contaminants, odors, or taste to ensure crisp, clean, smooth-tasting, odorless, and contaminant-free purified water is delivered to your faucet for cooking and drinking.

Leakproof Design

One of the top concerns among homeowners regarding any water filter system is leaking. Most start well but begin to leak over time. The APEC ROES-50 is designed to eliminate leaking both in the long run and short run. Its fittings are made of stainless steel and are fitted with O-rings to ensure the seal is leakproof. This gives you peace of mind and saves you in leak detection inspection costs.

Premium Quality Design

  • Made in the USA. The APEC water system is designed, engineered, and assembled by the Free Drinking Water Company in the USA. The company has extensive experience in manufacturing water filters as they have been in business for over 20 years. Their manufacturing facility is headquartered in California.
  • Quality Components. This water purifying system is made using high-quality parts for a smooth, long-lasting, trouble-free operation. It is designed and engineered by experts who pay keen attention to the product’s details.
  • It goes through a rigorous multi-point quality control process and third-party testing to eliminate even the slightest possibility of component imperfections. The system operation is set up to be free of leaks, clogs, or noise.
  • Certified. It is WQA 48 Gold Seal certified. This certification ascertains that a water filtration product has been built to the highest contamination rejection standards. It also affirms that the product has been made using safe materials and has been assembled safely. The JG tubing is food-grade certified, which means it does contaminate the water.
  • Fitted with a Block Filter. To enhance its durability, APEC ROES-50 Reverse Osmosis filter is equipped with a standard-size block filter, which has a longer lifetime and higher contaminant rejection rate than most types of filters on the market. As a result, this filter can last up to 12 months before needing to be replaced, unlike most other filters, which require to be replaced every six months.
  • Faucet. It comes with a premium quality faucet. The faucet’s design includes 360-degree rotation, a lead-free spotless brushed nickel finish, and a smooth disc valve.
APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System
  • Supreme quality - designed, engineered, and assembled in USA to guarantee water safety & your health. WQA certified to provide unlimited clean, refreshing crisp tasting water superior to bottled water

Filtration Capacity and Efficiency

The APEC ROES-50 has a capacity of 50 gallons of filtered water per day. However, this capacity may vary based on factors such as the inlet water temperature and pressure. Generally, the capacity is sufficient for most small and medium-sized homes.

On the downside, the filter wastes about 3 gallons of water for every gallon it purifies. This is higher than most other reverse osmosis water filters in its category. As such, it may cause a slight increase in your water bill.

Its recommended operating pressure ranges between 40 and 85 psi, while the recommended water temperature is 40-100F. The manufacturer recommends inlet water of a PH range of 2-11. It has a 3:1 recovery rate which is quite good for a water filter of this size. It also has an outstanding maximum total dissolved solids capacity of 2000pmm.

Ease of Installation

You can easily install this reverse osmosis water filter yourself in an hour or less. It comes with all the required parts, and the manufacturer offers a detailed step-by-step installation manual. You will also find an installation video on the product page on Amazon or the company’s YouTube Channel.

The filter is best installed under the sink. Its dimensions ensure that it fits well even in tight quarters. Otherwise, you can install it anywhere with a cold water supply and an outlet drain as long as the inlet water pressure is within the unit’s recommended range. You do not need to mount the unit on the wall.

 Ensure that the installation area for the RO water system has the following dimensions at a minimum – 17 X 6 X 18 inches. If you have a high demand for filtered water, you can install several individual APEC ROES-50 reverse osmosis filters at different points in the house.

Parts List

Various Parts List

An APEC ROES-50 reverse osmosis filter package comes with the following parts:

  • High-quality pre-filter set
  • TFC membrane
  • Water storage tank
  • RO Module with filter and membrane housing
  • Drain saddle
  • Feedwater adapter
  • Lead-free nickel faucet
  • JG colored tubing
  • Housing wrenches
  • Tank ball valve
  • Tank stand
  • Teflon tape
  • Instruction manual
  • Warranty

The parts are designed for an easy fit. They have a quick-connect fitting and pre-installed, color-coded tubing. In addition, the parts attach securely for a leakproof attachment without match hassles. Ultimately, the easy DIY installation saves you up to thousands of dollars in installation costs.

The versatile feed water adapter allows you to connect either 3/8” or ½” connections without additional components.


At an extra cost, the manufacture offers the following additions and upgrades:

  • Extra pre-filter set
  • Water quality testing kit
  • Ice maker kit
  • 3-gallon tank

How to Install

The detailed procedure for installing the APEC ROSE-50 is provided in the product manual. The installation process takes place in two main parts – assembling the filters and housing onto the main system and installing the system itself.

Below is a summary of the steps involved:

Assembling the filters into the housing

  1. Unwrap all the parts of the unit
  2. Place stage 1, 2, and 3 filters in the housing in the right, middle, and left slots, respectively, in an upright position.
  3. Starting from the left, twist the 3rd unit with your hand in the counterclockwise direction. Then use the wrench to securely tighten the two filters in place.

Installing the system

  1. Locate the cold-water supply to the kitchen faucet and turn it off
  2. Connect the feed water adaptor to the cold-water pipe
  3. Connect flex line riser to the water supply adaptor
  4. Connect the drain saddle
  5. Make a hole for the unit on the faucet
  6. Mount the faucet
  7. Position the system and mount it

Here is a DIY installation video of APEC ROES-50

Care and Maintenance

The ROES-50 requires minimal maintenance as the system is quite durable. As long as you install it properly, you can forget about it and enjoy a consistent and adequate clean water supply.

Its leak-free and clog-free design ensure that you do not have to worry about water leakages or clogging. In addition, it has a noise free-operation and does not require regular cleaning. The only thing to keep track of is the lifespan of the water filters.

Stage 1,2 and 3 pre-filters require replacement after 6 to 12 months, while stage 4 and 5 filters should be replaced after 2-3 years. In addition, the RO membrane should be changed after 2-3 years if you use city water and two years if you use well water.

The system has a housing design rather than a modular design. Therefore, should you need to replace any part, you will need to open the housing to access the particular part. Keep in mind that water flows through the housing. Therefore, you need to close the inlet water supply and have a bucket at hand before opening the housing.

Generally, the replacement costs for units with a housing design are more affordable than those with a modular design. The APEC ROES-50 Reverse Osmosis filter can last up to 20 years with proper use, care, and maintenance.

Warranty and Customer Support

Like other APEC water filter and APEC reverse osmosis water systems, the manufacturer offers a 1-year warranty on the ROES-50. The warranty covers material and workmanship defects under normal use. The manufacturer will replace or repair any parts of the filters that are defective in operation due to workmanship and material faults within one year from the date of purchase.

However, the warranty does not cover filter cartridges and membranes. Also, it does not cover damages due to negligence, misuse, misapplication, improper installation, accident, incompatibility with accessories, flooding, freezing, fire, or acts of God.

In this case, regular charges will apply to have the system, parts, or accessories replaced or repaired. Also, the warranty does not cover services to diagnose a malfunction on the unit.

If you register your APEC ROES-50 within eight weeks of purchase, you may be eligible for a warranty extension of up to 2 years on the RO system. However, the warranty is only valid in the 48 contagious states.

Besides the warranty, APEC offers lifetime customer support on their products. Although the customer support team may be difficult to reach sometimes, you are assured of professional assistance once you get through.

  • Affordable
  • Great value
  • Easy to install
  • Modern, sleek design
  • Designed, engineered, and assembled in the USA
  • Premium-quality, WQA certified build
  • Goes through rigorous testing
  • Leakproof fittings
  • Comes with a lead-free faucet
  • 1-year warranty
  • Free lifetime-support
  • Durable and efficient
  • Versatile feed water adapter
  • Produces health, smooth-tasting, pure water
  • Can be installed in small spaces
  • Offers adequate clean water supply from most small and medium-sized homes
  • Requires minimal care for and maintenance
  • Up to 99% harmful contaminants rejection rate
  • Produces more wastewater than similar products in its category
  • The recommended source water pressure is considerably low, which may affect its filtering capacity
  • Warranty does not cover shipping costs on returns


The APEC water filter is among the best-selling reverse osmosis water filter on Amazon, and understandably so. It has a high-quality build and top performance delivering great value at an affordable price.

It is easy to install, use, and maintain. This water filtration system ensures you get a consistent supply of clean water in your house. We hope our APEC reverse osmosis reviews have helped you on your hunt for the best reverse osmosis system for your home.

APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System
  • Supreme quality - designed, engineered, and assembled in USA to guarantee water safety & your health. WQA certified to provide unlimited clean, refreshing crisp tasting water superior to bottled water

Amanda Perkins

Amanda began her career as a technical writer for a healthcare group in 2008. Years after getting married and starting a family, she joined her husband Joshua on the Water Filter Authority journey to educate other families and households about safe, affordable, and effective water filtration systems.