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APEX MR-5075 5 Stage Reverse Osmosis Drinking Water Filter System - Made in U.S.A.

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APEX MR-5075 5 Stage Reverse Osmosis Drinking Water Filter System - Made in U.S.A.

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MR-5075 Reverse Osmosis System

APEX MR-5075 removes more than just chlorine taste and odor from drinking water. Each of the five stages of water filtration performs a unique purification function, delivering pure, safe drinking water for the entire family. This powerful reverse osmosis system starts the purification process by removing tiny particles like rust, sediment and insect parts. This protects your family and prevents the filtration systems from clogging. Next, the water flows through two activated carbon block cartridges. These compressed carbon block filters remove taste and odor-causing chemicals like chlorine, chloramine and rotten-egg odors. But that’s not all. Did you know that the chlorine disinfection process can create cancer-causing byproducts in the water? The good news is these carcinogens, called THMs, are removed by the carbon filters. The carbon cartridges also remove organic contaminants like herbicides, insecticides and industrial chemicals that seep into groundwater. The next step involves the reverse osmosis (RO) process. Here water is “squeezed” through a special membrane. Heavy metals, like lead and mercury, are removed while purified water passes through. The RO process also removes salts, fluoride, radon and benzene. The purified then flows through a post-filter containing granular activated carbon. This acts as a polishing filter, removing any traces of tastes, odors and gasses, for crystal clear, sparkling drinking water.

The APEX MR-5075 also includes a water storage tank and designer faucet. As the filtration system makes purified water, it fills the storage tank (up to 75 gallons per day). The storage tank sends purified water to the designer faucet. Your regular sink faucet will provide unfiltered water for washing dishes. The designer faucet provides only purified water for drinking, cooking, washing vegetables.

The APEX-5075 filtration system is pre-assembled and can be installed with simple hand tools. We recommend installation by a licensed plumber to insure adherence to all local codes. Routine replacement of the filter cartridges is recommended to maintain filter performance. Replacement cartridges are available from APEX Water Filters.

APEX MR-6050
MR-5000 Series

Figure 1.0     Function of APEX 5 Stage Reverse Osmosis Drinking Water Filter

  • Advanced 5-stage reverse osmosis drinking water purification system
  • 5-micron polypropylene pre-filter removes sediment, rust and other microscopic debris
  • Dual 5-micron activated carbon block cartridges remove chlorine, chloramine, bad tastes and odors, pesticides and carcinogenic impurities
  • High-efficiency TFC reverse osmosis membrane removes up to 99% of water contaminants like lead, nitrate, fluoride, mercury, hexavalent chromium (chromium-6), and arsenic.
  • Granular activated post-filter polishes the water to crystal clear perfection.
  • Easy to install kit includes water storage tank and pure water dispensing faucet
  • Built in the USA
Filter Stages
Figure 1.1     Contaminant Removal from Filter Stage

Metpure Brushed Nickel Drinking Water Faucet

Metpure Brushed Nickel Drinking Water Faucet
  • High quality premium Coke-style ceramic disc lever faucet crafted with solid brass exterior for durability and lasting finish
  • Included FREE faucet wrench eases installation time by more than half and ensures tight mount
  • connects to 1/4” tubing
  • Gooseneck that swivels 360 degrees
  • 3” shank for easy installation under sink
  • Requires 1/2” hole for minimal countertop drilling (soap dispenser hole can be used)

Where Style, Convenience & Purity Meet

pH7 Pull Down Faucet Not Included
Included Metpure Brushed Nickel Faucet
Where Style, Convenience & Purity Meet
Figure 1.2     Kitchen Countertop Appearence



  • Configuration
  • Feed Water Source***
  • Single Pass
  • City or Wall Water*


  • Input
  • Output
  • Pressure Guages
  • UV Lamp
  • 1/2" or 3/8"      FNPT
  • 1/4"     Tube
  • Optional (Not Included)
  • Optional (Not Included)


  • Radial Flow sediment
  • Radial Flow Carbon
  • Membrane
  • Axial Flow GAC
  • 1
  • 2
  • 1
  • 1

System Dimensions **

  • L x W x H Inch (cm)
  • Weight lb.(kg)
  • 19 x 14 x 6(48x 36 x 15)
  • 17.5(7.9)

Tank Dimensions **

  • L x W x H Inch (cm)
  • Weight lb.(kg)
  • 11 x 11 x 15(28 x 28 x 38)
  • 7.5(3.4)
  • * UV ray bacteria disinfection highly recommended for well water
  • ** Does not include operating space requirements.
  • *** Treatment ability of the system is dependent on feed water quality.Performance projections must be run for each installation.
Operating Limits
  • Maximum Feed Temperature ℉ (℃)
  • MinimumFeed Temperature ℉ (℃)
  • Maximum Ambient Temperature ℉ (℃)
  • Minimum Ambient Temperature ℉ (℃)
  • Maximum Feed Pressure psi (bar)
  • Minimum Feed Pressure psi (bar)
  • Maximum Turbidit NTU
  • Maximum SDI Rating SDI
  • 85 ( 29.00 )
  • 40 ( 4.44 )
  • 120 ( 48.89 )
  • 40 ( 4.44 )
  • 85 ( 5.86 )
  • 45 ( 3.10 )
  • 1
  • <3
  • Maximum Free Chlorine ppm
  • Maximum TDS ppm
  • Maximum Hardness gpg +++
  • Maximum pH (Continuous)
  • Minimum pH (Continuous)
  • Maximum pH (Cleaning 30 Min.)
  • Minimum pH (Cleaning 30 Min.)
  • 0
  • <2000
  • 0
  • 11
  • 5
  • 12
  • 2
  • Test Parameters: 550 TDS Filtered (5 micron), De-Chlorine, Municipal Feed Water, 65 psi (4.50 bar) Feed Pressure, 77 Degrees F(25 Degress C), 7.0 pH. Data taken after 60 minutes of operation.
  • + Low temperatures and high feed water TDS levels will significantly affect system production capabilities. Computer projections should be run for individual applications.
  • ++ Scale prevention measures must be taken.
  • AWater supply adapter valve
  • BCold water shut-off valve
  • CAuxiliary faucet
  • DGarbage disposal
  • EPre-carbon filter sumps
  • FDrain Saddle
  • GStorage tank with valve in open Position
  • HPre-filter sump
  • IMembrane assembly
  • JPost-filter
Under Sink Setup
Figure 1.3     Under Sink Setup
Reverse Osmosis Drinking Water Systems
Plumbing Support Recommended

Plumbing Support Recommended

Water pressure can cause leaks and damage the surrounding building or fixtures if not properly installed. User must check all fittings for tightness. APEX assumes no responsibility for water damage due to leaks.

Options & Upgrades