Customize your Clarifi™ Reverse Osmosis drinking experience with an optional remineralizer cartridge designed for better taste and enhanced pH. The Clarifi™ remineralizer cartridge adds those good-for-you minerals, like the electrolytes, calcium and magnesium, back into your filtered drinking water. You can install with confidence, knowing the Delta® Clarifi™ Tankless Reverse Osmosis System is backed by our warranty and highly-trained, live customer support.