APEC Water ULTIMATE RO-PERM Reverse Osmosis System

The APEC RO-PERM like the other models in the ultimate series is equally quite identical to the RO-90 model except that it’s particularly designed to provide boosted performance.

The unit comes with a permeate pump which is a feature that sets it apart from other standard reverse osmosis systems. It’s an efficient unit specifically built for use in homes or areas with low water flow where a regular RO system would be really slow or not function at all.

APEC offers the unit into versions, one for homes with pressure ranging from 0 to 30 psi and another for areas with a pressure of 30 to 50 psi such as some well water homes. Herein we review the second option which is the RO-PERM (30-50 psi) version.

Filtration Process

Both versions of the RO-PERM perform a thorough filtration using the highly reliable APEC’s 5-stage RO process to deliver the best quality, safe drinking water.

Composed of a large capacity polypropylene sediment filter, the 1st stage of the RO-PERM is responsible for clearing out every large particle that is bigger than 5-micron. It filters out dust, rust, silt, sand and many other sediments that may clog the system.

Stage 2 and 3 feature two carbon block filters made from coconut shell. These two filters are quite powerful and have a large surface area. They eliminate chlorine, chloramines, nasty tastes, odors, colors and cloudiness. Other common chemicals and VOCs are as well filtered out from the water in these two stages.

APEC’s highest quality FILMTEC TFC RO membrane with a high rejection rate of 99% ensures complete purification of the water in the fourth stage. The 0.0001-micron membrane removes all the remaining contaminants and TDS including fluoride, bacteria, viruses and heavy metals like arsenic, radium, chromium and lead.

The 5th stage advanced coconut shell carbon filter performs final polishing of the RO water clearing out any tastes and odors from the storage tank to deliver the purest water possible.

Filtration Capacity and Efficiency

Similar to the other APEC ultimate series models, the high capacity membrane of the RO-PERM can produce up to 90 gallons of clean water a day. Hence, it’s a suitable unit too for those that desire large amounts of purified water regularly.

Pre-installed Permeate Pump

The highlight of this APEC RO-PERM model is the pre-installed permeate pump it comes with. The pump utilizes hydraulic energy often lost to the drain to effectively enhance the tank pressure enabling the RO-PERM to fill the storage tank quicker.

It can fill the tank around 2 to 3 times faster than the rest of APEC’s systems and most other standard RO systems on the market.

That extra boost in filling pressure also leads to an increased delivery pressure at your faucet. It makes the water to flow out of the tank to the faucet faster facilitating a quicker fill-up.

Under normal feed water pressure of 60 psi or above, the permeate pump can also improve the overall performance of the system by boosting the flow through the filters.

It can as well help cut down the amount of wastewater generated. With most of APEC’s systems having wastewater to pure water ratio of 3:1, the inclusion of this permeate pump will help this RO-PERM to significantly reduce this ratio and conserve water.

This particular version is pretty effective for homes with minimum feed water pressures of 30 psi while the second version is designed to work well with inlet water pressures that are as low as 0 psi.

The best part is that the pump in either version doesn’t require electricity to run because it’s powered by the hydraulic energy from the wastewater going to the drain. Therefore, it’s a cost-effective addition and you won’t have to worry about the filter not working in case of power goes out. 

Installation and Maintenance

Putting together the RO-PERM doesn’t need much expertise. The permeate pump comes pre-installed which simplifies the whole process and it uses JG quick connection fittings for fast installation.

All the filters have a longer service life to ensure fewer change-outs and low system maintenance. The prefilters have a lifespan of 1 year while the membrane and the post-filter will last 3 to 5 years. 

The bottom line here is that this RO-PERM model is the most suitable APEC RO system for any home with a low inlet pressure of around 30 to 50 psi. If your pressure is 0 to 30 psi, the other version of the RO-PERM will be a great fit. Both versions guarantee to increase the rate at which the filtered water gets delivered to your RO faucet.


  • Clears out 99.99% of all contaminants
  • Increases the delivery pressure significantly
  • A non-electricity pump ensures no energy cost
  • Generates 90 GPD suitable for large families
  • Permeate pump helps reduce waste water production
  • Installation is simple with low maintenance
  • The manufacturer offers a 1-year limited warranty


  • The system might be a little noisy while the pump is operating


Product Overview

ProductAPEC Water ULTIMATE RO-PERM Reverse Osmosis System
BrandAPEC Water
Rating4.2 out of 5 stars (4.2 / 5) (More than 151 reviews)
Recommended price350 USD (Check the latest price at Amazon.com)

Product Specifications

Pre-filters1st stage: Sediment filter
2nd & 3rd stage: Premium extruded carbon block
RO membrane0.0001 micron Top Tier Filmtec RO Membrane
Post-filtersAdvanced coconut shell refining carbon
Incoming Water Pressure30 – 50 PSI
TDS20 – 70 (mostly about 40-50 ppm)
Storage tank4-gallon capacity
3.2-gallon holding
Tubing 1/4 ” Color-code tub
FaucetLead-free faucet
Fitting & adaptors1/4 ” tub
1/2″ or 3/8″ versatile feed water adapter
Waste Water to Filtered Water Ratio1:1
FeaturedNon-electric permeate pump
FDA Certified JG Food grade tubing
2 year extended manufacturer warranty with registration.
DocumentsUser Manual [PDF]
Warranty [HTML]

Satisfying Chart

(Estimation from the verified purchase customers)


Installation Guide

This video shows you step-to-step how to install the APEC Water Ultimate series Reverse Osmosis System.

Images Gallery

APEC Water ULTIMATE RO-PERM Reverse Osmosis System

APEC Water ULTIMATE RO-PERM Reverse Osmosis System
APEC Water ULTIMATE RO-PERM - Permeate Pump
APEC Water ULTIMATE RO-PERM – Permeate Pump
APEC Water ULTIMATE RO-PERM - Components
APEC Water ULTIMATE RO-PERM – Components
APEC Water ULTIMATE RO-PERM - Filters set replacement
APEC Water ULTIMATE RO-PERM – Filters set replacement

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