SpectraPure® MaxCap Upgrade Kit for 5-Stage RO/DI and SP2000 Filter Systems

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This item has been discontinued.


MaxCap DI Upgrade Kit for 5-Stage RO/DI systems and SP2000, MaxCap Cart, Silica Buster Cart, Dual Probe TDS Mt Everything you need for most systems to convert to A MaxCap based DI system. Produce DI at half the cost of other systems!

Product Manuals & Documentation

SpectraPure® MaxCap Upgrade Kit for 5-Stage RO/DI and SP2000 Filter Systems

Owner's Manual available for download in Adobe PDF file format

Manufacturer Info

SpectraPure Aquarium Supplies
SpectraPure was established in 1985 and is located in Tempe, Arizona, home of Arizona State University. SpectraPure is dedicated to excellence in the design and manufacture of water filtration and purification systems for household, commercial, laboratory and light industrial applications. Their product lines includes a full range of systems and equipment, including drinking water systems, water softeners, filtration systems, reverse osmosis units, RO/DI and deionization systems and many other technological innovations and water purification accessories. SpectraPure provides innovative, state-of-the-art solutions to water purity problems and applications.



Experience Level: Expert

Nice unit, now you know

I'm upgrading from an SP2000. The instructions were pretty easy to follow, although some of the fittings were a little tight. Slight leak until I fiddled with the fittings, more my own issue (the fittings are standard high quality JG fittings). It didn't strike me at first, but I believe these aren't color change media, so that's why you need the second purity meter. What's nice is I can now see how each RO/DI stage affects the water. From 670ppm (SoCal) to 7, then from 7 to 0. So now instead of having to guess which filter to replace, you will *know*. I haven't used it long enough to tell if the filters will last longer.

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Experience Level: Expert

Worth Every Penny

I've struggled for years with lesser quality resins from Kent and the mixed-bed resins sold at Fosters & Smith. These Spectrapure filters really do purify the water. I've run about 500 gallons through them and my TDS reading after the first Di filter is still reading 0. My old crappy Kent filters read TDS=3 after 75 gallons. They would read TDS=7 after a couple months. I've had these Spectrapure filters in for several months now and still have TDS=0. I was sceptical that they were any different; I'm a believer now. I'm ordering another set for a school reef tank that I maintain. I use these Maxcap filters in my Kent Silicamax Hi-S 60 GPD unit. I have a 300 Gallon Reef aquarium and this setup works great.

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