APEC Water RO-Hi Reverse Osmosis System [90 GPD]

The RO-Hi is yet another fine model in APEC’s ultimate line of reverse osmosis filtration systems.

This premium WQA gold seal certified system is a perfect fit for those searching for a fast-flow system with a high output. It’s purposely tailored for high usage or fast-flow output.


  • Reasonable price
  • Remove up to 99% of contaminants
  • Produce 90 gallons per day

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Filtration Process

The RO-Hi is equipped with premium-quality filters that deliver high performance for an extra-long time compared to those in other standard systems. The unit uses a 5-stage filtration process to get rid of all kinds of impurities and contaminants in the source water.

In the 1st stage, there’s a polypropylene sediment filter which takes out all the particles and large particles in the water down to 5 microns. This step clears out all the dust, rust, silt, sand, scales and any other solid contaminant. 

The 2nd and 3rd stages consist of effective coconut shell carbon block filters with a large surface area. They absorb up to 99% of chlorine and chloramines that often lead to unpleasant tastes, odor, colors and cloudiness. These filters also efficiently remove most of the common chemicals and VOCs from the water.

At the 4th stage, a FILMTEC high rejection TFC reverse osmosis membrane gets rid of even the tiniest remaining contaminant in the water including 99% of all the TDS (total dissolved solids).

It clears out everything larger than 0.0001 microns which pretty much doesn’t much around other than pure water molecules.

The final stage of the unit is an advanced coconut shell carbon filter which ensures the water you draw from your faucet does not have any unpleasant taste from the holding tank.

Filtration Capacity and Efficiency

With an output of 90 gallons of purified water per day, the RO-Hi is another model within APEC’s ultimate series that will comfortably suit any large family out there that requires a high amount of water regularly.

Besides that, what makes this model one of the best on the market in terms of performance is that it has a fast-flow output design.

It features 3/8” output quick dispense design which increases the water flow rate allowing it to fit the tank twice faster than standard reverse osmosis systems.

This will reduce waiting time, especially when filling large pots or pitchers. You will be able to use it often without lacking clean drinking water.

With regards to the amount of wastewater generated, the RO-Hi is still not that efficient and this is something we’ve noted in most of APEC’s RO systems. It wastes 3 gallons of water for every gallon of purified water produced.

Installation and Maintenance

There’s nothing complicated when it comes to setting up the RO-Hi. Everything you need is included in the package plus the installation tools and manual.

It will as well require very little maintenance because it has longer-lasting filters. The three first filters can last up to 12 months while the post-filter and the membrane have a service life of 3 to 5 years.

Overall, we would say this system is best suited for larger households that have five or more members. It’s built specifically for high usage and will ensure you get a constant supply of water to meet your needs.


  • Reduces contaminants to close to zero
  • High capacity filters with a high flow rate
  • High pure water production ideal for large families
  • Easy to install and filters have a longer service life
  • Backed by a 2-year limited warranty


  • Wastewater generated is a little on the high end

Price & Rating

ProductAPEC Water RO-Hi Reverse Osmosis System [90 GPD]
BrandAPEC Water
Rating4.8 out of 5 stars (More than 92 reviews)
Recommended price300 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 Pressure40 – 80 PSI
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 Ratio3:1
Featured3/8″ fast-flow output
FDA Certified JG Food grade tubing
2 year extended manufacturer warranty with registration.
DocumentsUser Manual [PDF]
Warranty [PDF]

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Installation Guide

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

Images Gallery

APEC Water RO-Hi Reverse Osmosis System

APEC Water RO-Hi Reverse Osmosis System
APEC Water RO-Hi Reverse Osmosis System - 3/8" fast-flow output
APEC Water RO-Hi Reverse Osmosis System – 3/8″ fast-flow output
APEC Water RO-Hi  - 5 Stages in details
APEC Water RO-Hi – 5 Stages in details
APEC Water RO-Hi - Components
APEC Water RO-Hi – Components
APEC Water RO-Hi - Faucet
APEC Water RO-Hi – Faucet
APEC Water RO-Hi - Filters set replacement
APEC Water RO-Hi – Filters set replacement