Neptune Aquatics

1238 N. 5th St.
San Jose, CA 95112
Phone Discontinued

Monday - Friday: 11am to 7pm
Saturday\Sunday: 11am to 6pm

news twitter

Browse our Online Store!


SpectraPure MaxCap D2 DI Add-On System

SKU: DG1139
Web store price may not reflect retail store price.


Everything you need to add a dual stage DI to your existing RO system. SpectraPure, Inc.® Revolutionary MaxCap® DI ™ cartridge has over 3 times more capacity than any other Mixed-Bed or Hi-Silica removal deionizing cartridge. Install after your existing RO system to remove any unwanted algae growth in your aquarium. This incredible break-through in DI cartridge technology will enable you to produce DI water at less than half of any other dual stage DI systems.

SpectraPure’s Dual MaxCap® DI™ System comes with:

* 2-Position Housing & Mounting Bracket
* MaxCap® DI™ Cartridge. (The MaxCap® cartridge removes ammonia left by water sources that contain chloramines.)
* SilicaBuster ™ DI Cartridge
* Dual-Probe TDS Meter (Determines when the MaxCap® DI™ Cartridge is exhausted. When the output TDS exceeds 75% of the input TDS,change the Cartridge.)
* Universal Filter Wrench
* Retail-Ready Package

In many applications, the MAXCAP® DI™ (DI-MC-10) is installed up-stream of a Mixed-Bed or Hi-Silica removal cartridge. For example, if the RO water entering the MAXCAP® DI™ has 20 ppm TDS (Total Dissolved Solids), the original DI cartridge may process about 400 gallons of pure DI water. By placing a MAXCAP® DI™ cartridge in front of the original cartridge, 1200 gallons of water will pass through both cartridges before the MAXCAP® DI™ is exhausted. The original DI cartridge will be only one-third exhausted. A second MAXCAP® DI™ will process another 1200 gallons and the original cartridge will now be two-thirds exhausted. Only after a third MAXCAP® DI™ cartridge processes another 1200 gallons will the original cartridge finally become fully exhausted.

That's 3600 gallons purified with only 4 (3 MAXCAP® DI™ + 1 Mixed-Bed) cartridges, not 9 (9 x 400 = 3600).