APEC Water Systems ROES-50 Review: Clean, Refreshing Water at Great Value

APEC Water Systems ROES-50 is a highly regarded 5-stage reverse osmosis system designed, engineered, and assembled in the USA. It is certified by the Water Quality Association (WQA) and offers unlimited clean, refreshing water that surpasses the quality of bottled water. The system's premium filters have a long lifespan and can eliminate up to 99% of impurities such as chlorine, taste, odor, VOCs, fluoride, arsenic, lead, nitrates, heavy metals, and over 1000 other contaminants. It has a maximum total dissolved solids (TDS) capacity of 2000 ppm and requires a feed water pressure of 40-85 psi.

APEC-Water-Systems-ROES-50 -under-sink

The ROES-50 system comes with a 100% lead-free designer faucet, certified JG premium grade tubing, and other high-quality parts to ensure the delivery of safe and impurity-free water. It is an under-sink installation type, making it convenient for most households. The system has a capacity of 50 gallons and includes a special feature to reduce TDS. APEC provides a one-year warranty for the product.

With over 10,600 purchases and nearly 10,200 positive reviews, the ROES-50 has gained popularity among users. It has an average rating score of 4.7, reflecting its reliability and customer satisfaction. The system's ability to provide clean and great-tasting water is highly appreciated, and its value for money is often highlighted in reviews. The comprehensive installation materials, including the necessary items for under-sink installation, make it easy for homeowners to set up. However, it should be noted that drilling a hole for the faucet might require special tools depending on the countertop material.

Customers have observed that the ROES-50 system saves more water compared to 3-stage systems, and it offers superior taste and higher flow rate. The water is visibly clearer after purification. Based on a family of four and usage for both a countertop faucet and a refrigerator ice/water dispenser, users report that the main large particulate filters last about a year. It is recommended to purchase a complete set of all five filters, including additional large particulate filters, when buying the unit to have spares readily available for regular replacement.


The included faucet is considered a solid upgrade, being sturdy and easy to clean, with a better-than-expected flow rate. The polyhose provided with the system is color-coded and requires no tools for installation. The pressure tank can be installed in an upright or sideways position. The installation materials also come with water and drain taps, facilitating integration with existing water supply and drainage systems.

Why People Prefer This Product

The APEC ROES-50 offers several advantages that make it a preferred choice for many individuals seeking a reliable water filtration system. Firstly, it provides great value for its price, which is only slightly higher than the cost of three replacement filters for a 3-stage system. Secondly, users have reported that the purification level of the ROES-50 exceeded their expectations, resulting in noticeably better tasting water. The system's ability to deliver water comparable to high-end bottled water brands, such as Fiji Water, is highly appreciated by users.

Additionally, the ROES-50 comes with all the necessary components for installation, making it suitable for competent homeowners to install themselves. The unit's compact size is another favorable aspect, as it can fit in even the tightest spaces, ensuring versatility and flexibility in placement.

Pros and Cons


  1. Great value, costing slightly more than three replacement filters for a 3-stage system.
  2. Exceeds expectations in water purification, delivering great-tasting water comparable to high-end bottled brands.
  3. Comprehensive installation materials included, suitable for competent homeowners.
  4. Compact unit that fits in tight spaces.


  1. Installation of the supplied faucet may require special hole saw tools.
  2. Installation under the sink may require nimbleness and careful maneuvering.

In summary

The APEC Water Systems ROES-50 receives positive reviews for its excellent value, superior purification capabilities, and great-tasting water. It is praised for being compact, allowing it to fit into tight spaces. However, potential drawbacks include the need for special hole saw tools for faucet installation and the requirement for nimbleness during installation due to space constraints under the sink.

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What is the capacity of the APEC ROES-50?

The ROES-50 has a capacity of 50 gallons.

Does the ROES-50 reduce total dissolved solids (TDS)?

Yes, the system is designed to reduce TDS.

Is professional installation required for the ROES-50?

No, the system comes with comprehensive installation materials and can be installed by competent homeowners.

How long does the ROES-50's warranty last?

The APEC ROES-50 comes witha 1-year warranty.

Can the ROES-50 be installed in tight spaces?

Yes, the compact size of the ROES-50 allows for installation in even the tightest spaces.

Read MoreBest Apec Reverse Osmosis System


5 ratings
Michael Greene
Michael Greene
Michael Greene is an experienced editor at Guessbest.com, where he specializes in water filtration devices. With a knack for writing and advising on water-related issues, Michael has a wealth of knowledge in this area. He is dedicated to helping readers make informed decisions when it comes to water filtration and frequently shares his expertise through engaging and informative content. Michael's attention to detail and passion for ensuring access to clean water has made him an invaluable member of the Guessbest team.