APEC Water Systems ROES-PHUV75

APEC Water Systems ROES-PHUV75

This system is the top water filtration system in the Essence series which provides mineral water. This system is based on the reverse osmosis principle and has 7 different stages of filtration for removing many types of contaminants present in your water. Many harmful contaminants are removed by this system including fluoride, chromium, copper, lead, radium (226/228 isotopes), arsenic, cadmium, barium, and many more.

The ROES-PHUV75 is equipped with ultraviolet light which is to provides a shield against harmful bacteria and viruses by killing them up to 99.99% present in your water. The remineralized RO filter adds the calcium carbonate which is made in the US itself to increase the alkalinity of water. 

APEC Water Systems ROES-PHUV75 Essence Series Top Tier Alkaline Mineral Filtration System Design

This is a 7-stage RO filtration system that is capable of removing more than 1000 contaminants from your water. 

APEC Water Systems ROES-PHUV75 Essence Series Top Tier Alkaline Mineral

Stage1: Sediment filter 

This first pre-filter consists of a 5-micron sediment filter which is made up of high-capacity polypropylene. This filter helps to remove the rust, dust particles from the water. The removal of rust and dust from water leads to an increase in the lifespan of the system and the membrane.

Stage 2 and 3: Carbon-Block Pre-filters

The second pre-filter has 10-micron filters. These carbon block filters help to absorb the passed ultra-fine sediments from the sediment filter. These filters are used for removing any color, taste, cloudiness, or unpleasant odor of chlorine which is mixed at the water body center for treating the water. 

The filter contains the premium extruded carbon block which has the capacity to hold the dirt present in the water supply. These filters also remove the VOCs and other chemicals present in your water. VOCs water solubility is very low and has high vapor pressure. Due to the presence of double carbon-block filters the lifespan of each filter increases. The efficiency of these filters is higher than GAC filters.

Stage 4: Reverse Osmosis Membrane

This stage contains the TFC (Thin-film composite) RO membrane also known as nanofiltration membrane which helps to eliminate total dissolved solids (TDS) up to 99% from the water. These TDS might be fluoride, chromium, lead, arsenic, and many other harmful contaminants.

Due to the presence of this ultra-thin film, the performance of the filter is best along with providing a high flow rate. The pressurized tank size is 3.2 gallons in which water gets accumulated after flowing from the RO membrane.

Stage 5: UV Sterilization

APEC Water Systems ROES-PHUV75 Essence Series Top Tier Alkaline Mineral

This stage has a UV sterilization method in which ultraviolet light is used to kill the living organisms and cells present in water. The UV light penetrates the skin of living cells and destroys their DNA so that they cannot regenerate again. This stage helps to remove bacteria, cysts, organisms, and viruses present in water.

Stage 6: Coconut Shell Carbon Filter

This stage contains the Total Contamination Removal (TCR) filter which as the name indicates removes any leftover contaminants above the stages. This filter uses advanced coconut shell refining carbon which is made from coconut shells. The abrasion resistance of this coconut-based carbon is higher in comparison to other normal carbon. These coconut-based carbon have more than 80% micropores in them.  These micropores help to absorb any leftover unpleasant smell in water to taste better.

Stage 7: Remineralization Filter

This stage is the remineralization stage in which calcium filter use calcium carbonate which is made in the US. The calcium carbonate is added to water to increase its alkalinity. This filter’s purpose is to neutralize the acidic pH level of water before going to your faucet. This increases the pH level to a small extent to make it for a better taste like bottled water. The water pH level has not increased much but you will feel the taste of water is much better than RO non-mineralized water.

Performance of Filters

Many people have concerns regarding the performance difference of the Ultimate series and Essence Series RO systems of  APEC. The reality is the difference is not much in their performance. 

You can see that there is much price difference between the Ultimate series and the Essence series. The price of the Ultimate series RO system is higher because of the WQA certification of the system and in the US all of its components are manufactured.

For RO systems like ROES-PHUV75 Essence Series, imported components are assembled in the US except for the calcium filter which is only manufactured in the USA.

APEC Water Systems ROES-PHUV75 Essence Series Top Tier Alkaline Mineral

With the help of one UV-sterilization stage and 6-filters, you will get great tasting water with a reduced TDS number. The double carbon block filters are designed uniquely to remove the chemicals and chlorine from the water up to the maximum extent. The contact time of the water is maximized due to the large surface of the carbon block which results in increasing the purity of water. This also extends the lifetime of membranes and filters of the system.

Non-chlorinated water sources like well water are the home ground of many bacteria and viruses. To protect against these organisms, bacteria, viruses, and cysts, a very powerful UV light is used to stop the breeding of these organisms, and if present in water, their cells are destroyed by UV light.

To increase the alkalinity and taste of water, US-made calcium carbonate is used in the pH enhancement filter of the system. This provides you the best and uniquely refreshing taste of water to drink.

The water production capacity of the system is 75 GPD (Gallon Per Day) which is more than sufficient for a medium-size family. Also if the water supply in your house is around 60 PSI or more than this then the system will provide you 90 GPD water production capacity. 

If the water flow rate is less in your home then you can use a non-electric permeate pump or electric permeate pump to increase the flow. 

The efficiency of the ROES-PHUV75

APEC Water Systems ROES-PHUV75 Essence Series Top Tier Alkaline Mineral

This system wastes around 3 gallons of water for giving 1 gallon of purified water. Some of the water is used by the RO membrane to flush it so that no clogging may develop in the membrane. The back pressure of the reserve tank causes water waste.

You can reduce the water waste by installing a permeate pump. Due to the increased pressure by the permeate pump, it leads to an increased water pressure of the water going to RO, the backpressure of the pressurized reserve tank is countered by water pressure increased by the permeate pump. 


If you have basic plumbing skills then you can install this system very easily within one hour. APEC made this system for DIY (Do-It-Yourself) installation. There are color-coded tubes which makes it easy to connect them. Push-in-connect fittings are used so that you would not require any tools to connect the fittings. 

You will get the complete installation kit which includes all the necessary components required in installation along with a faucet that is made lead-free including JG food grade which is FDA certified.

APEC Water Systems ROES-PHUV75 Essence Series Top Tier Alkaline Mineral

Filter Change and the Maintenance


The lifespan of high-quality APEC RO filters is from 6 to 12 months. In a small family, filters will last for over a year. The lifespan of water filters is also dependent on the quality of water supplied to your home. For water from the well, there might be a need to change your filter twice a year. 

The lifespan of the RO membrane is around 2-3 years. You can order a bundle set of filters or individuals as per your choice. You only need to replace the filters and also check for any probable leaks. Filter change is required because over time more sediments and contaminants get filled in the filters which eventually leads to a decrease in the cleaning efficiency of filters and might not provide you the clean and pure water to drink.

The Pros

  • In comparison to traditional RO filtration systems who totally remove the required minerals as well from water, water is healthier and has a better taste than those RO systems.
  • With its 5-stage filters and one-stage UV sterilization method, all the impurities are removed from the water.
  • APEC designed this system for total DIY installation so that you do not have to hire a plumber to install this system. Online videos are available to install this system step-by-step.
  • Long-lasting filters provide you superb taste and more refreshing water than bottled water. 
  • Continuous UV sterilization helps to destroy cysts, bacteria, viruses, and other microbial pathogens which are present in non-chlorinated water to provide you with extra protection.
  • Food-grade calcium is used in a remineralization filter for increasing the pH level of water very safely. Calcium minerals are used for making the water taste even better and increase its alkalinity. 
  • Removes more than 1000+ contaminants including lead, iron, fluoride, bacteria, heavy metals, chlorine, arsenic PFOA/PFOS, mercury, chemicals, and many more. 
  • Comes with a 1-year limited warranty and you will get free lifetime support from experts.

APEC Water Systems ROES-PHUV75 Essence Series Top Tier Alkaline Mineral

The Cons

  • This filtration system increases your water pH level a little bit. Some users’ water pH tested to level 7 or less.
  • The water flow rate from the faucet is not very much fast. In this case, you might need to install a permeate pump to increase the water flow rate.

The Conclusion

If you are looking for a filtration system that can provide water with better taste and refreshing water than bottled water and have no bacteria, cysts, viruses, microorganisms then this APEC Water Systems ROES-PHUV75 is a great option. This filtration system removes more than 1000 contaminants including heavy metals, chemicals, viruses, bacteria from the water. 

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