6-stage Aquarium Reverse Osmosis System RO/DI with HM Inline TDS meter
6-stage Aquarium Reverse Osmosis System RO/DI with HM Inline TDS meter

6-stage Aquarium Reverse Osmosis System RO/DI with HM Inline TDS meter

CAD $290.00
CAD $217.50
Part Number: 101140
In Stock

Choose Options

50GPD 104092
75GPD 104093 [+10.00]
100GPD 104094 [+20.00]
150GPD 104098 [+35.00]
200GPD 104097 [+50.00]
SAVE ON Additional Filters and Accessories:
Booster pump:
50 to 75 GPD and accessories 105715 [+110.00]
100 GPD and accessories 105716 [+120.00]
Booster Pump 200 GPD and accessories [+140.00]
*We'll ask for shipping info at checkout

Detailed Description:

6-Stage Saltwater Aquarium RODI Unit with Metering

Producing 99.99% pure water, this is a great system if you are looking for a reverse osmosis unit for your saltwater aquarium or hydroponics setup. Included inline DM-1 TDS meter and pressure gauge lets you know when it's time to change filters.

Please Note: For higher capacity configurations (150 GPD or more) we highly recommend adding a booster pump to achieve maximum output from the system.

Stages of Filtration:

  • 1st Stage: 1 Micron Polypropylene Sediment Filter 104001
  • 2nd Stage: Granular Activated Carbon (GAC) Filter 104004
  • 3rd Stage: 5 Micron Carbon Block (CTO) Filter 104005
  • 4th Stage: TFC Membrane 50 Gallons per day104092
  • 5th Stage: Refillable Inline Mixed Bed DI Filter 104050
  • 6th Stage: Refillable Inline Mixed Bed DI Filter 104050

Note: Our Refillable DI Cartridges can be refilled with our bulk DI resin (part #104135-5)


  • Bad Tastes and Odors
  • Lead
  • Flouride
  • Chlorine
  • Copper
  • Cysts (Cryptosporidium, Giardia, Entamoeba & Toxoplasm)


  • 6-stage RO/DI Unit
  • Selected RO Membrane Price may vary
  • One set of installed pre-filters
  • Housing wrench and installation accessory pack
  • Dry Vertical Pressure Gauge
  • Optional Booster Pump if selected (Price may vary)
  • HM DM-1 TDS Meter


  • Rejection rate of 99.99% of TDS‡ after the DI Stage
  • Product Water:
    • 0 ppm TDS
    • Conductivity <0.1uS/cm
    • Resistivity approx. 18 MO
  • Second Refillable DI Cartridge, reduces filter changes
  • Product to Waste Ratio: 1:2
  • Physical Dimensions:
    • RO Unit: 15" L x 6" D x 17" H;
    • Storage Tank: 11" Dia. x 14" Tall
  • Total Weight: Approx. 27 lbs
  • Operation Temperature: 40-104°F / Maximum temperature 40°C.
  • System Operating Pressure: 45-75PSI.
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

5 Stars
I parched the 6 stage aquarium reverse osmosis system ro di + hm inline tds meter, It was delivered in good time. It was mostly assembled in the packaging however the connecting plastic elbows had been broken during shipping, I figure it was due to the lack of protective padding around the end of the unit and rough handling by the currier. I contacted MaxWater support through there online form and got a quick response. They sent out a new elbow and was at my home within 3 days. I assembled the unit and put it in place within 2 hours and it works great. It preforms as advertised. I have no complaints to offer.
Reviewed by:  from Windsor ON. on 1/23/2015
4 Stars
ro di 6 stage
First one I purchased and don't have any other system to compare to, however, would have preferred to have the tubing to be in different colors, and instructions to set up the over-float valve, delivery was prompt and, even for me was easy set it up was easy.
Reviewed by:  from texas. on 6/25/2014

Filters/Parts for Item Number:101140

Polypropylene Sediment Filter 5 Micron, size 10
Average Rating(1)
10.00  6.00
Part Number: 104002
In Stock
GAC UDF Carbon Filter for Reverse Osmosis & Whole House Systems
Average Rating(1)
18.00  15.00
Part Number: 104004
In Stock
CTO Coconut Shell Carbon Filter 1 Micron size 10
Average Rating(1)
21.00  17.00
Part Number: 104006
In Stock
DI De-ionization  Aquarium Mixed Bed Ion Exchange Resin, Clear Refillable Housing
Average Rating(2)
Part Number: 104050
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100 GPD Reverse Osmosis Membrane NSF Certified
Average Rating(2)
Part Number: 104094
In Stock
Mixed Bed Ion Exchange DI Resin for RO Aquarium  - 2 Lbs
Average Rating(2)
Part Number: 104138-2
In Stock

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