Thirsty Adventurers: get Purified Water just by just Squeezing the XR's soft plastic bottle! Just squeeze the XR bottle to force potentially (not to mention definitely) tainted water sequentially through three purifying stages. - First-stage filter removes large sediment and disagreeable odors - Second-stage cyst filter traps protozoa in a web of glass fiber - Third-stage ViruStat microbial cartridge kills bacteria and deactivates viruses. - Liter size fits neatly in the pocket of your pack; spout snaps shut for dripless transportation Nearly eliminates need to carry extra safe water, whether hiking, traveling abroad or dealing with emergencies/natural disasters. Only Exstream places an EPA-registered microbial purification cartridge into a standard sport flask--providing complete anti-microbial protection against cysts, bacteria and viruses.

KATADYN OEM Replacement Filter Cartridge for BOTH the Hiker and the Hiker Pro Water Filters. Includes silicone, filter protector & cleaning sponge. ALWAYS CARRY A SPARE! Remember, PURE WATER = SURVIVAL!

Camps, Homes, Hunting, Emergencies -- Pure, Clean Water comes from the Katadyn Gravidyn TRK Gravity-fed Drip Filter. This is the REPLACEMENT CARTRIDGE ELEMENT for your Gravidyn...be sure to order in sets of threes, and we recommend a fourth just in case of breakage during your occasional cleanings.

In our humble opinion, Katadyn is the BEST Water Filter Manufacturer available--we use Katadyns ourselves, exclusively!! The HIKER PRO is an outstanding water filter, featuring quick-connects for water bottles and hydration units (such as Camelbacks, PolarPak, etc.). You will like this one--it provides sweet-tasting, safe filtered water.

The Katadyn HIKER Water Microfilter is a standard in the field--#1 best-selling water filter in the USA. High-performance water filtering yields great, pure water. Perfect for backpacking, camping, hiking, or as a backup emergency water source. We personally own, use and recommend this water filter. BUY TODAY -- and get a couple of spare filters, too!!

PURE WATER = SURVIVAL for both Home and Great Outdoors. These Katadyn MicroPur Water Pufication Tablets deliver great-tasting, pure water. Individual foil packets for each tablet allow you to break up and store in first-aid kits, survival kits, your car, backpack pocket, etc. Active ingredient: chlorine dioxide, which is nearly tastelesss and far superior to the old iodine-based water tablets.

For purifying tainted water to give you clean, pure drinking water. Works in a zillion outdoor and emergency situations...campers, hikers, militaries, relief or emergency organizations, families, individuals, fishermen, hunters, RV owners, bikers and more. Effective against viruses, bacteria and cysts (such as Giarda and Cryptosporidium). Stash some in your survival kit, 72-hour kit, bug-out bag, bugout bags, go-bag, Seventy-Two Hour Kit, grab-and-go bag, or whatever you want to call it: you need this product.

Almost indestructible, long-lasting, best water filter on the market. Katadyn Pocket Microfilter is what we use personally, and recommend strongly!