REPLACEMENT CARTRIDGE ONLY, KFT EXPEDITION SOLD SEPARATELY: This Silver Quartz ceramic cartridge drops into your existing Katadyn KFT Expedition hand pump water filter. Keeps the filter serving groups for up to 28,000 gallons of clean water. 28,000-GALLON ELEMENT LIFE FOR HEAVY-DUTY GROUP USE: Heavy-duty ceramic filtration media sized for group and commercial water duty. Built for trekking outfits, militaries, and relief organizations operating in remote environments worldwide. SILVER QUARTZ CERAMIC, FRESH NATURAL TASTE: Silver Quartz controls recontamination through the outlet tap and produces fresh, natural-tasting water with no chemical aftertaste in the final pour. Ideal for group operations between deployments. DROP-IN INSTALL, NO TOOLS REQUIRED: When your KFT Expedition flow slows or nears the 28,000-gallon mark, swap in this cartridge to keep your filter serving the group. No field downtime, no specialty tools. TRUSTED SINCE 1928: Katadyn has been delivering clean water solutions for nearly a century. Used by hikers, travelers, and professionals worldwide, our products are built for reliable performance wherever you go.