For large groups or just lots of water, the Katadyn?« Base Camp microfilter offers effective gravity-fed water filtration--just fill and hang! Easy-to-use dry bag-style design provides safe, potable water for large groups, base camps and families. Large volume 2.6 gallon water bag with roll-top and side-release buckle closure fills quickly and hangs easily. Low maintenance, pleated glassfiber filter supplies fast water flow; cleanable filter protector extends filter life in challenging conditions. Filter physically removes silts, cysts, protozoa and bacteria down to 0.3 microns in size, including giardia, salmonella, cryptosporidia and others. Activated carbon filter core reduces unpleasant tastes and odors. Delivers approximately 16 oz./minute providing up to 200 gallons output depending on water quality. Long 48-inch output hose with on/off valve controls and directs flow of filtered water where you need it. Also includes cleaning sponge and food-grade silicon lubricant for filter O-ring. Lightweight and portable design travels easily.

The lightweight and easy to use design makes the Katadyn Hiker a great choice for all-around use. Filter physically removes particles, protozoa, and bacteria down to 0.3 microns in size, including giardia, salmonella, cryptosporidium and others. Glass-fiber element is pleated for increased surface area to handle silt and muddy water. Activated-carbon core adsorbs chemicals and pesticides to improve taste of water. Pre-filter at hose inlet filters to 150 microns, removing larger contaminants before they reach the main filter to increase its life span. Quick-connect adapter sends the filtered water directly into your REI hydration pack or Nalgene?« reservoir (both sold separately). Includes a carry sack and bottle adapter that fits most water bottles.

Field maintainable, the Hiker PRO includes extra features for higher performance and improved versatility. Includes field maintenance kit with cleanable filter protector to extend cartridge life in challenging conditions. To clean filter protector, simply swish it in the water. Quick-connect fittings permit easy installation and removal of input and output hoses. Lightweight and easy-to-use design makes this filter a great choice for all-around use. Filter physically removes particles, protozoa and bacteria down to 0.3 microns in size, including Giardia, salmonella, cryptosporidium and others. Glass-fiber element is pleated for increased surface area to handle silt and muddy water. Activated-carbon core adsorbs chemicals and pesticides to improve taste of water. Pre-filter at hose inlet filters to 150 microns, removing larger contaminants before they reach the main filter to increase its life span. Quick-connect fittings allow direct attachment to drinking tube (1/4'') of your hydration pack. Ergonomic pump handle is comfortable and easy to pump. Includes a carry sack and bottle adapter that fits most water bottles.

Using proven pleated filter technology, this filter bottle provides easy waterflow, with carbon to reduce chemicals and make water taste better. Meets EPA standards for removal of Giardia and bacteria. Delivers 160 refills (26 gallons) per replaceable cartridge, depending on water conditions. Reliable 0.3 micron pleated glass-fiber microfilter and granular activated-carbon offer efficient water filtration. Bottle holds 21 fluid ounces of water. Can be upgraded to a purification system for international travel with the Katadyn Exstream ViruStat Replacement Kit, sold separately. Carry loop on lid lets you hook a carabiner through to attach bottle to your pack. Polyethylene is 100% BPA free.

Katadyn?« Vario Microfilter's two-mode design lets you opt between fast filtration or extended lifetime of the primary filter (up to 500 gallons!). Vario features a two-filter system; one is a 0.3-micron, pleated glassfiber filter used to remove waterborne bacteria and cysts. Secondary ceramic filter, engaged with a simple twist of the casing, is used to prefilter debris in dirty water away from primary filter. Keeping turbid water away from the primary filter effectively extends its usable life. Vario is also a high-output system, filtering up to two quarts per minute in "fast flow mode" (filtering clean water with ceramic filter disengaged). In "longer life mode" (ceramic filter engaged), unit produces one quart per minute. Replaceable carbon keeps water tasting fresh and reduces chemicals, toxins and odors through the life of the cartridge. Dual-piston technology minimizes the effort required to pump water through the system. Unit attaches directly to standard, wide-mouth bottles (not included) for filling; output hose accommodates hydration systems and large containers. Includes two bags of replaceable carbon, prefilter, cleaning pad, lubricant and carry bag.

Let gravity do all the work with the extremely efficient and pump-free MSR AutoFlow?äó Gravity filter system. Hollow fiber technology offers a high flow rate of more than 1.75 liters per min. Weighing in a mere 10.5 oz., the AutoFlow carries easily on lightweight backpacking trips. Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others. Pump is fully field maintainable and does not require tools for complete disassembly. Operation is simple?Çöfill the 4 liter collection reservoir with dirty water, connect it to the filter with the quick disconnect fitting and let the water flow. Universal bottle adapter offers multiple options for filling your water bottles and hydration reservoirs. Adapter threads fit wide-mouth Nalgene bottles and MSR Dromedary?äó bags; adapter also presses into openings of Platypus Hoser?äó reservoirs and Sigg water bottles. Or, remove the bite valve from your CamelBak or Platypus reservoir and attach your hydration drink tube to the universal bottle adapter to fill up. Included shut-off clamp lets you control the water flow so you won't waste a drop of clean drinking water. Kit also contains a filter test guide, a storage sack and instructions.

Backpacker April '08: ''The HyperFlow is so fast and light it converted several editors who had sworn off filters in favor of chemical treatment.''. You'll be blown away by how fast you can fill a water bottle with the MSR HyperFlow?äó microfilter. Hollow fiber technology offers an extremely high flow rate of 2.75 liters per minute. At just 7.8 oz., the HyperFlow is the lightest, most compact pump filter created by MSR. Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others. Pump is fully field maintainable and does not require tools for complete disassembly. Included Quick-Connect?äó bottle cap interfaces with MSR hydration products, Nalgene bottles and other containers with 63mm threaded openings. Quick-Connect?äó cap allows the pump to attach directly to the bottle or hydration bladder for the most convenient filling. Included prefilter attaches to the end of the intake hose and blocks larger contaminants from entering the microfilter. Prefilter floats near the surface of the water to avoid intake of contaminants located at the floor of your water source. Over-molded end caps on the pump provide an excellent grip and pumping comfort. Adapt the HyperFlow pump into a pump-free gravity filter with the HyperFlow Gravity kit, sold separately.

The compact MSR MiniWorks EX filter with EX technology has been proven reliable by thousands and thousands of adventurers around the world. Ceramic/carbon Marathon?äó EX element effectively removes bacteria and protozoa including giardia and cryptosporidia. Also removes chemicals including pesticides, industrial pollutants, iodine and chlorine. Filter can be cleaned over and over for maximum field life with no tools required. AirSpring Accumulator?äó increases filtration speed up to 1 liter per min. Bottom screws onto an MSR Dromedary?« Bag or Nalgene?« water bottle for easy operation (both sold separately). Easy disassembly lets you troubleshoot and maintain the MSR MiniWorks EX filter in the field.

Filtering water has never been so easy?Çölet gravity do all the work with the pump-free Platypus CleanStream?äó gravity filter system. System includes 2 four-liter reservoirs, 1 for unfiltered water and 1 for filtered water; reservoirs have hang loops for easy in-camp use. Simply fill the unfiltered reservoir and hang it above the clean water reservoir to let gravity carry the water through the filter. Hollow fiber filter technology offers a high flow rate of 1.6 liters per minute?Çöthat's 4 liters in 2.5 minutes! Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others. Unfiltered reservoir features a quick-disconnect valve that automatically shuts off the flow of water when hose is disconnected. Shutoff hose clamp on the filtered-water hose allows on-demand water control for filling bottles; clamp also shuts off the system when not in use. Cap and elbow fitting on the filtered-water reservoir integrates with all Platypus spouts. Clean the system by simply holding the filtered-water reservoir above the unfiltered-water reservoir to backflush the filter. Taste-free reservoirs and silicone hoses ensure great-tasting water.

Set up the Sawyer Complete water treatment system and in the time it takes you to unpack your tent, you'll have 2 liters of fresh, clean drinking water. Utilizing a hollow fiber membrane filter, the Sawyer system yields 2 liters of potable water in as little as 1.5 min. Simply fill the included gray reservoir with unfiltered water, attach the filter and filter hose and let gravity do the rest to fill the included blue reservoir. Once the blue reservoir is full, hang the reservoir from its handle and fill your water bottle, pots and pans. Or, attach the included drink tube and a bite valve of your choice (sold separately) and use the reservoir as you would any hydration system. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters exceed Environmental Protection Agency (EPA) recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water; system includes a faucet adapter for a thorough backwash from a household faucet. Setup is simple and the system packs easily, weighing in at only 16 oz. This Sawyer water filter comes with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge. System includes a 2 liter gray reservoir, 2 liter blue reservoir, hollow fiber filter, faucet adapter, drink tube, quick-release hose adapter and instructions for use. Please note: take care not to let your filter freeze as this could damage the filter housing or the fibers themselves.

Set up the Sawyer Complete water treatment system and in the time it takes you to unpack your tent you'll have 4 liters of fresh, clean drinking water. Utilizing a hollow fiber membrane filter, the Sawyer system yields 1 liter of potable water per minute. Simply fill the included gray reservoir with unfiltered water, attach the filter and filter hose and let gravity do the rest to fill the included blue reservoir. Once the blue reservoir is full, hang the reservoir from its handle using the included Nite Ize S-Biner loop and fill your water bottle, pots and pans. Or, attach the included drink tube and a bite valve of your choice (sold separately) and use the reservoir as you would any hydration system. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters exceed Environmental Protection Agency (EPA) recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water; system includes a faucet adapter for thorough back washing from a household faucet. Setup is simple and the system packs easily, weighing in at only 18 oz. This Sawyer water filter comes with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge. System includes a 4 liter gray reservoir, 4 liter blue reservoir, hollow fiber filter, faucet adapter, drink tube, quick-release hose adapter, S-Biner and instructions for use. Please note: Take care not to let your filter freeze as this could damage the filter housing or the fibers themselves.

Break out the Sawyer Complete water treatment system and in the time it takes you to set up camp you'll have 8 liters of fresh, clean drinking water. Utilizing a hollow fiber membrane filter, the Sawyer system yields 1 liter of potable water per minute. Simply fill the included gray reservoir with unfiltered water, attach the filter and filter hose and let gravity do the rest to fill the included blue reservoir. Once the blue reservoir is full, hang the reservoir from its handle using the included Nite Ize S-Biner loop and fill your water bottle, pots and pans. Or, attach the included drink tube and a bite valve of your choice (sold separately) and use the reservoir as you would any hydration system. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters meet Environmental Protection Agency (EPA) recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water; system includes a faucet adapter for thorough back washing from a household faucet. Setup is simple and the system packs easily, weighing in at only 24 oz. This Sawyer water filter comes with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge. System includes an 8 liter gray reservoir, 8 liter blue reservoir, hollow fiber filter, faucet adapter, drink tube, S-Biner and instructions for use. Please note: Take care not to let your filter freeze as this could damage the filter housing or the fibers themselves.

The Sawyer Four-Way Water Treatment system gives you 4 options for using the hollow fiber membrane filter to produce clean drinking water while on the go. Use the filter with the included water bottle to treat water as you sip or use it as an inline filter for a hydration reservoir, household faucet or homemade ultralight system. Filter can be used to make your own gravity filtration system or even as a prefilter for your pump filter. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters meet or exceed Environmental Protection Agency (EPA) recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water. This Sawyer water filter comes with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge. Includes 32 fl. oz. bottle with cap, hollow fiber filter, faucet adapter, replacement straws, hydration pack assembly kit and instructions. Polyethylene bottle is 100% BPA free.

Use the Sawyer Inline water filter to effectively treat water straight from a hydration reservoir, pump prefilter, household faucet or a homemade gravity system. Fast and effective hollow fiber membrane filter can be used to treat water while you drink. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters exceed Environmental Protection Agency (EPA) recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water; system includes a faucet adapter for thorough back washing from a household faucet. Includes hollow fiber filter, faucet adapter, 2 stainless-steel hose clamps, 1 tube connecter and 1 tube adapter.

Think of water filtration in a whole new way with the quick and convenient gravity-powered Sawyer water treatment system. Utilizing a hollow fiber membrane filter, the Sawyer system yields 2 liters of potable water in as little as 1.5 min. Simply fill the included reservoir with unfiltered water, attach the filter and hoses and let gravity do the rest to fill your own hydration reservoir or water bottle. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters exceed Environmental Protection Agency (EPA) recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water; system includes a faucet adapter for a thorough backwash from a household faucet. Setup is simple and the system packs easily, weighing in at only 11 oz. This Sawyer water filter comes with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge. System includes a 2 liter reservoir, hollow fiber filter, faucet adapter, filter tube, quick-release hose adapter and instructions for use. Please note: take care not to let your filter freeze as this could damage the filter housing or the fibers themselves.

Think of water filtration in a whole new way with the quick and convenient gravity-powered Sawyer water treatment system. Utilizing a hollow fiber membrane filter, the Sawyer system yields 4 liters of potable water in as little as 3 min. Simply fill the included reservoir with unfiltered water, attach the filter and hoses and let gravity do the rest to fill your own hydration reservoir or water bottle. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters exceed Environmental Protection Agency (EPA) recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water; system includes a faucet adapter for thorough back washing from a household faucet. Setup is simple and the system packs easily, weighing in at only 12 oz. This Sawyer water filter comes with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge. System includes a 4 liter reservoir, hollow fiber filter, faucet adapter, filter tube, quick-release hose adapter, Nite Ize S-Biner hanging loop and instructions for use. Please note: Take care not to let your filter freeze as this could damage the filter housing or the fibers themselves.