SpectraPure Mega MaxCap 90GPD 5 Stage Manual Flush RO/DI System - MMC-RODI-90-10-MF

SKU: 45-0063


SpectraPure®’s Mega MaxCap® 90 GPD 5-Stage High Efficiency RO/DI Systems are designed to produce ultra pure de-ionized water at optimal efficiency, while simplifying DI cartridge monitoring and replacement. This upgraded MaxCap® System is comprised of 0.5 Micron MicroTec Sediment and 0.5 Micron Carbon Block pre-filtration stages to remove sediments, chlorine and other impurities, before passing feed water to the individually tested 98% Rejection SpectraSelect Plus RO Membrane.

The system’s DI stages work together to reliably produce even greater volumes of ultra pure (18.2 megohms) deionized water while extending overall DI cartridge life. This translates to fewer DI cartridge changes over time. SpectraPure® has optimized DI performance by incorporating their latest unique blends of laboratory grade resins into a new and improved Mega MaxCap® DI Cartridge. With the Mega MaxCap® roughing DI stage followed by our new Enduro™ DI polishing stage, virtually all remaining ionized impurities, silica and phosphates are removed, producing the purest DI water and increased DI cartridge longevity.

The Mega MaxCap® 90 GPD RO/DI System includes a pressure gauge on the membrane feed, ASO valve, comes plumbed with a Manual Membrane Flush Valve to help assure long RO membrane life and two dual TDS meters to monitor membrane feed and RO product water TDS, as well as DI cartridge output purity. Enjoy improved DI system performance, extended reliability, ease of monitoring, maintenance and plenty of ultra high purity DI water at a lower cost per gallon!


  • Ultra high purity DI water system at an economical price!
  • Significantly reduced operating cost
  • Longer RO Membrane Life
  • Longer DI Cartridge Life
  • Reduced water usage
  • High Efficiency Low 2:1 waste ratio produces 50% less waste water
  • Individually Tested 98% Rejection SpectraSelect Plus RO Membrane
  • Manual flush valve for longer membrane life
  • Clear filter housings for prefilter and DI Cartridge visibility
  • Ultra high efficiency 0.5 Micron MicroTec Sediment Pre-filter
  • 0.5 Micron Carbon Block Pre-filter with 20,000 ppm-gallons chlorine removal capacity
  • Optimized Dual Stage DI Stages: Mega MaxCap® DI Cartridge (DI Roughing Stage) - Enduro™ DI Cartridge (DI Finishing Stage)
  • New Mega MaxCap® DI Cartridge has 4 x more capacity than a typical mixed-bed DI cartridge

Accessories Included:

  • 2 Dual Probe Inline Digital TDS Meters accurately monitor water purity, eliminate guessing and assure “000 TDS” product water
  • Pressure Gauge monitors membrane feed pressure while indicating Pre-Filter cartridge status
  • Float valve (installed in any user provided atmospheric reservoir) works with ASO valve to automate system operation
  • 6 foot feed tubing, 6 foot product and waste lines included
  • Filter Wrench for easy removal of Pre-filter and DI Cartridges
  • Garden hose adapter for easy tap water hookup
  • Dimensions: 20 inch x 7 inch x 16 inch
  • 1 year manufacturer's warranty

Warning: SpectraPure® does not recommend drinking water produced from deionization (DI) as DI resins are typically not made of food grade approved material.

Customer Reviews

Based on 2 reviews
Great system

I couldn't be happier. I've been using this system for my reef tank for about 4 years. I used to buy water from machines at the stores for 25-35 cents per gallon. This is so much more convenient, reliable and cost effective.


I got this unit 2-3 years ago and it's still working wonderfully. I haven't even had to change the filters yet, which is pretty insane considering the cheap $50 unit made maybe 20 gallons of water before I had to switch them out. This one has probably made, easily, over 1000 gallons of water (I keep lots of smallish tanks) without any noticeable degradation to the water quality being output and has paid for itself (in money and effort) as far as I'm concerned. And we have hard Philadelphia water.
Support for the one or two things I've needed in the meantime has been awesome & prompt and I'm finally picking up some new filters in case mine go out. Would absolutely recommend this system, even though the start up price is higher than many other available systems.
Also as a side note - this thing is pretty heavy, but does a good job standing up on it's own/is reasonably stable if you can't find a place to mount it.

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