DI-MC-10 The revolutionary MaxCap DI cartridge has over 3 times more capacity than any other Mixed-Bed or Hi-Silica removal deionizing cartridge. When placed upstream of your existing DI cartridge, the life of your downstream DI will increase by nine times or more! This incredible break-through in DI cartridge technology will reduce your costs to produce DI water by over 50%.In many applications, the MaxCap DI can be used as a "roughing" cartridge when installed up-stream of a Mixed-Bed or Hi-Silica removal cartridge. For example, if the RO water entering the Max Cap DI has 25 PPM TDS (Total Dissolved Solids), the original DI cartridge may process about 200 gallons of pure DI water. By placing a MaxCap DI cartridge in front of the original cartridge 600 gallons of water will pass through both cartridges before the Max Cap DI is exhausted. The original DI cartridge will be only one-third exhausted. A second Max Cap DI will process another 600 gallons and the original cartridge will now be two-thirds exhausted. Only after a third Max Cap DI cartridge processes another 600 gallons will the original cartridge finally become fully exhausted. This example illustrates that three Max Cap DI cartridges plus the original mixed-bed cartridge will process 1800 gallons of pure DI water. It would have taken nine original mixed-bed cartridges to produce the same amount of pure DI water.