4 Stage Countertop Drinking MiniMax Space Saver Reverse Osmosis System Build You Own, No Extra space required under your sink.
4 Stage Countertop Drinking MiniMax Space Saver Reverse Osmosis System Build You Own, No Extra space required under your sink.

4 Stage Countertop Drinking MiniMax Space Saver Reverse Osmosis System Build You Own, No Extra space required under your sink.

CAD $210.00
CAD $178.50
Part Number: 101090
In Stock

Choose Options

8" Standard spout #105234 (5.00)
50GPD 104092
100GPD 104094 (15.00)
200GPD 104097 (35.00)
Feed Water connection
6 stage inline Options
Booster pump:
50 GPD FULL PACKAGE BOOSTER 105715 (185.00)
100 GPD FULL PACKAGE BOOSTER 105716 (215.00)
200 GPD FULL PACKAGE BOOSTER 105719 (295.00)
Storage RO Tank
Optional Accessories
*We'll ask for shipping info at checkout

Please Note: Orders for our Build Your Own Systems can't be canceled after checkout. Our Build Your Own Systems are intended for advanced users with very specific system requirements. We recommend contacting us with any additional questions before placing an order.

Detailed Description:

Build Your Own Portable Counter-Top Reverse Osmosis

Our Space Saver MiniMax RO system can generate a maximum of 2 gallons of RO water per hour at a feed water pressure of 60 PSI. When installed without a tank, its production rate is capped at 0.13 liters per minute. This system is particularly well-suited for apartments and other situations where a non-permanent installation is needed. However, it's important to note that the MiniMax has a slower production rate compared to our Standard RO systems. For households with more than one person using the system regularly, we recommend considering a 200 GPD Membrane and/or incorporating a storage tank to ensure an adequate supply of purified water.

Stages of Filtration:

  • 1st Stage: 55 micron Inline PP Spun Polypropylene Sediment Filter 104040
  • 2nd Stage: T33-GAC Inline Coconut Shell Carbon Filter 104041
  • 3rd Stage: TFC Membrane 50 Gallons per day 104092
  • 4th Stage: T33-GAC Inline Coconut Shell Carbon Filter 104041
  • The standard package includes all the above filters + 2-way diverter valve and Spout. Changes and upgrades are available in this listing

Here are some guidelines on selecting the right RO accessories:

  • DI Filter: Add inline mixed bed deionization filter to produce absolutely pure water with ZERO TDS, good for aquarium user or dental office for their autoclave machines.
  • Flush Kit: Used to flush your membrane manually to extend the membrane life and efficiency.
  • Booster Pump Kit: Includes Booster Pump & Transformer + High pressure switch.
  • Diverter valve: When you select this option; you can connect your RO Feed water Inlet to your kitchen faucet directly (suitable for those who live in rental Apartments).
  • 2-way Diverter Valve (Default Connection setup) When you select this option; the drain clamp will not be included in your package, we will connect the system drain line directly to the Diverter return line and all the waste will diverted to your sink through the diverter.
  • Pressurized Tank Kit: Used if you would like to add a pressurized tank + Tank Valve + Auto Shut off valve to your system.
  • Auto Shut Off Valve: Add this option if you are not going to select the pressurized tank as it is included with the above option. BUT if you select faucet or float valve and you would like to shut off the system automatically when you are not using the system; you have to add this option. otherwise without the auto shut off valve when you close the faucet the RO water line will be off but the waste line will not shut off automatically and it will continually draining.
  • Ball Valve: For manually turn your system on & off without shutting off the main feed water line valve ( such diverter valve) every time you end using your system ( but to enable this, you should have auto shut off valve in your system to control on and off from the ball valve).
  • Float Valve: Install the float in your water container, when full the float will rise, knowing that the float valve will shut everything off including the water supply when it reaches the level that you have it set at.


  • 8 Feet of ¼" OD tubing - 4 feet for feed line and 4 feet for returning waste line to diverter valve.
  • Diverter Valve
  • Goose-neck faucet with 360 degrees of rotation
  • 3 Inline Filters
  • Selected RO Membrane Price may vary
  • Flow Restrictor
  • One Year Limited Warranty


  • Minimum rejection rate of 95% of TDS
  • Product to Waste Ratio: 1:3
  • Dimensions: RO Unit / 13.5"L x 6"D x 5"H;
  • Operation Temperature: 40°F to 104°F
  • Operating Pressure Range: 45-75 PSI.
Lower than 45 PSI you must add booster pump + high pressure shut-off switch.
Higher than 75 PSI Add pressure control valve to fix the pressure @60-65PSI.

Warning: This system should only be used with a biologically safe water supply.

Filter cartridges should be changed every 6-12 months under domestic conditions. Filter life varies and depends on the water source quality.

‡ Total Dissolved Solids


Filters/Parts for Item Number:101090

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50 GPD Reverse Osmosis Membrane
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