5-stage 100GPD Reef Aquarium Reverse Osmosis Water System RO/DI
5-stage 100GPD Reef Aquarium Reverse Osmosis Water System RO/DI

5-stage 100GPD Reef Aquarium Reverse Osmosis Water System RO/DI

CAD $245.00
CAD $220.00
Part Number: 101045
In Stock

Choose Options

50GPD 104092 [+-20.00]
75GPD 104093 [+-10.00]
100GPD 104094
150GPD 104098 [+15.00]
200GPD 104097 [+30.00]
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:

5-Stage Saltwater Aquarium/Hydroponics RODI Unit (Large Refillable Cartridge)

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.

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

Tank and faucet are not included with this 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 100 Gallons per day104094
  • 5th 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)


  • 5-stage RO/DI Unit
  • Selected RO Membrane Price may vary
  • One set of installed pre-filters
  • Housing wrench and installation accessory pack
  • Optional Booster Pump if selected (Price may vary)
  • Optional if selected. Price may vary Booster Pump


  • Rejection rate of 99.99% of TDS‡ after the DI Stage
  • Product Water:
    • 0 ppm TDS
    • Conductivity <0.1uS/cm
    • Resistivity approx. 18 MO
  • Product to Waste Ratio: 1:2
  • Physical Dimensions:
    • RO Unit: 15" L x 6" D x 17" H;
  • 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
Great system. Easy to install. Works great. My shrimp love this clean water that I can adjust to meet there requirements.
Reviewed by:  from Markham, Ontario. on 2/11/2015
5 Stars
Excellent product and service
Excellent product and service, Simple to use, install, clear instruction. Happy Reefer :D
Reviewed by:  from New Zealand. on 10/23/2013
5 Stars
I purchased the 100 gallon per day reef aquarium reverse osmosis water system RO/DI to use in my Discus hatchery, as Discus require soft water and a low ph for breeding. My water has total dissolved solids of 375 ppm and a ph of 8.7 which is liquid rock. With the R/O unit that I purchased from "Max Water" I now can supply water for my Discus hatchery that has a low to 0 ppm of TDS and a ph of 6.6, and with the float valve I can turn on the RO/DI unit and forget about it, knowing that the float valve will shut everything off when it reaches the level that I have it set at. The best part is that you can not beat the price!.... Thank You "Max Water"
Reviewed by:  from On, Canada. on 3/30/2012

Filters/Parts for Item Number:101045

Spun Polypropylene Sediment Filter 1 Micron, size 10
12.00  8.00
Part Number: 104001
In Stock
GAC UDF Carbon Filter for Reverse Osmosis & Whole House Systems
Average Rating(1)
Part Number: 104004
In Stock
CTO Carbon Block Filter  5 Micron 10
Average Rating(1)
Part Number: 104005
In Stock
100 GPD Reverse Osmosis Membrane NSF Certified
Average Rating(2)
Part Number: 104094
In Stock

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