The best microfilter for large groups and relief organizations. Ideal for outfitters, base camps, river trips and expeditions. Exclusive silver impregnated ceramic element lasts up to 26,000 gallons. Durable stainless steel design. Filters up to 1 gallon per minute.

Replacement filter for Katadyn Expedition Water Filter.

The MIOX Purifier represents a revolution in water treatment. It's ultralight, compact, and easy to use-with no pumping, maintenance, or iodine required. Developed in conjunction with the U.S. military, the MIOX Purifier offers unrivaled ease of use and reliability for purifying large volumes of water, making it ideal for outdoor recreation, travel, and disaster-preparedness. It works by creating a powerful dose of mixed oxidants (MIOX), which is then added to untreated water, inactivating all viruses, bacteria, Giardia, and Cryptosporidium (which even iodine doesn't kill). And since the MIOX Purifier needs only common camera batteries and salt to operate, it's maintenance-free, delivering more water, more easily than any purifier ever before.

The HyperFlow utilizes the latest Hollow Fiber Technology in a package so small and so easy to use it will change the way you travel in the backcountry. Its ergonomic design, diminutive size and tool-free maintainability make it just as appropriate on day trips as it is on multi-day excursions. Also included is a Quick Connect Bottle Adapter™ - allowing direct connection to all MSR hydration products and a variety of other "wide mouth" containers - and an advanced prefilter to prolong the life of your filter.

The MiniWorks EX is the best-selling filter on the market, delivering long-lasting, fully field-maintainable water filtration. Its durable ceramic element ensures protection, pumps water for years, and can be cleaned repeatedly for full recovery, with no tools required for complete disassembly. The MiniWorks is also lightweight, compact, and, thanks to its innovative AirSpring Accumulator™, capable of pumping one liter of water per minute. Kit includes Miniworks EX, stuff sack, hose float, scrub pad, and instructions.

An essential camping gear item, the Katadyn Hiker PRO Microfilter efficiently removes bacteria and protozoan parasites including giardia and cryptosporidia from backcountry drinking water sources. A step up from the popular Hiker model, the Katadyn Hiker PRO Water Filter includes a removable filter protector that extends cartridge life in demanding conditions, a field maintenance kit, and Quick Connect Fittings for easy installation and removal of output hoses, including direct attachment to hydration bladder drink tubes (1/4 inch inside diameter). Additionally, a universal bottle adaptor allows fuss-free filling of bike bottles, wide mouth Nalgene bottles, etc. Backpackers and climbers alike appreciate the compact, lightweight design, and low maintenance AntiClog technology. The fast, great tasting output of the Katadyn Hiker PRO Water Filter also makes it an attractive option, even enough for those treatment tablet die-hards to finally jump on the microfilter wagon. If traveling to a developing country, be sure to consider a system that eliminates viruses too.

Gravity is good…the MSR AutoFlow Gravity Filter uses the Earth's sucking power to filter one liter of water in just one minute. Keeps your posse hydrated with clear liquids by removing 99% of bacteria, protozoa, and particulates.

Blending the proven filtration of the micro-filter with the chlorine-based SweetWater Purifier Solution, the MSR SweetWater Purifier System provides safe, clean water worldwide. The 4-to-1 mechanical advantage pump lever services a micron filter that eliminates water borne bacteria and protozoa, such as giardia and cryptosporidia, with a worst case purifying solution backup.

Convenience is everything when family camping at the beach, or rafting for days down the Colorado River. The Katadyn Base Camp Water Filter offers an accessible way to treat large volumes of water. No pumping is required. Just fill the water bag and hang; gravity is your friend. The Base Camp Filter uses the cleanable Hiker PRO cartridge, which contains a pleated glass fiber element that removes bacteria, protozoa and cysts from the drinking water.

Lightweight and compact, the SweetWater® Microfilter makes water filtration fast and easy.

Created specifically for hiking, backpacking and remote trekking, the Katadyn Exstream XR Purifier Bottle features an internal EPA-registered Virustrat cartridge and carbon filter to remove microorganisms and all viruses from any water source. This 34-oz. bottle weighs less than the lightest backcountry microfilters and doesn't require pumping, making it perfect for extended day hikes and summer mountaineering around questionable water sources. One thing to consider is that the filter and cartridge require a bit more work than sipping from a standard water bottle--but the extra safety measure will keep you healthier miles beyond the nearest trailhead or outpost.

Designed to fit in most bike water bottle cages, the Katadyn Exstream Purifier Bottle features an internal EPA-registered Virustrat cartridge and carbon filter to remove microorganisms and all viruses from any water source. This 26-oz. bottle weighs less than the lightest backcountry microfilters and doesn't require pumping, making it perfect for extended mountain biking around questionable water sources. One thing to consider is that the filter and cartridge require a bit more work than sipping from a standard water bottle--but the extra safety measure will keep you healthier miles beyond the nearest trailhead or outpost.