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Water

$109.95
Lightweight water purification for peak performance in the outdoors! SteriPEN Adventurer Opti was built for the toughest mountains and rivers in the world. Backpacker Magazine gave it their Editor’s Choice Award in 2011 for changing the face of portable water purification.
The Adventurer Opti UV water purifier is essential gear for thousands of adventurers and features a patent-pending technology – an optical eye senses water to ensure safe use and effective treatments. The revolutionary optical water sensor doubles as an integrated LED flashlight for added convenience on the trail or around the campsite: hold down the activation button for three seconds to illuminate the darkness.
Rugged design and construction trusted by thousands of endurance athletes. Adventurer Opti is powered by two CR123 batteries making it a lightweight water purification system and keeping it operating effectively in even cold environments. The long-lasting UV lamp provides purifies up to 8,000 liters! Works in containers with a minimum 1.75 inch diameter opening. (Like Nalgene wide-mouth bottles one liter bottles.)
This product includes the SteriPEN Premium Lamp Life Pledge. After purchase from an authorized reseller, register your SteriPEN at SteriPEN.com/register. Reach the lamp life limit (8,000 treatments) and we’ll replace it with a new SteriPEN! For details visit SteriPEN.com/Pledge.
Contents: SteriPEN Adventurer Opti Water Purifier, two disposable (non-rechargeable) CR123 batteries, neoprene case with belt loop, and user’s guide. Three year limited warranty.

$39.95
Ideal for longer expeditions like ultra-trails, the XA FILTER CAP 42 filters bacteria and protozoa from natural water sources, so you can drink easily and safely without needing to carrying huge volumes of water.

$19.98
$39.95
50% Off
The RapidPure® Pioneer Straw gives you the power to filter and purify water in an ultralight water purifier straw, perfect for hiking, backpacking, or traveling.
This pocket-sized straw weighs just 2.6 oz. including the carry bag. More than a filter, the Pioneer removes over 99.99% of viruses, bacteria, parasites, sediment, and more.
The UltraCeram® technology acts like a magnet to remove pathogens 100 times smaller than traditional microfilters can remove for unrivaled protection without any pumping, priming, or backflushing.
Plus, the Pioneer continues to work even after it has been frozen.
Weight: 53.9g / 1.9oz

$23.95
• Proven 99.99% effective.
• Purifies up to 120 litres of water
• Treats bacteria, virus & protozoa including Giardia & Cryptosporidium.
• Iodine free product.
• Perfect for camping, hiking, travel or part of an emergency preparedness kit.
• Ultra light and compact.
• Contains no free chlorine.
• Easy solution to prepare for treating uncut fruits and vegetables that are suspect of bacterial contamination.
• Leaves no after taste or odor in treated water.
• Proven, safe and effective for drinking water treatment in a 15 minute process.
• Cap design makes Pristine™ Personal Pack ideal for traveling with no leaking of opened product when tightened securely.
• Weight - 70g / 2.5oz

$8.96
$11.95
25% Off
NEW: Connects a GravityWorks™ water filter directly to the Big Zip™ EVO Reservoir.
Connect your GravityWorks™ water filter (and most other water filters) directly to a Big Zip™ EVO Reservoir without ever having to take it out of your pack. Just plug the hose into the base of the filter, insert the quick-disconnect fitting into the upper port on your reservoir, let gravity do the rest and you'll be on your way with clean, taste-free water.

$29.96 - $37.46
$39.95 - $49.95
25% Off
New for 2019: Premium taste-free hydration reservoir with 50% faster flow rate.
Introducing the Big Zip™ EVO—the latest evolution in taste-free hydration. The Big Zip EVO delivers a significantly higher flow rate than previous Platypus reservoirs and a host of new features, making it a great option for backpackers, hikers, and mountain bikers. Available in 1.5L, 2.0L, 3.0L

$5.21
$6.95
25% Off
UPDATED: Protects bite valve from dirt and debris; slows freezing.
Whether you set down your pack on the muddy trail or in the snow, protect what goes into your mouth from dirt and debris while slowing down the freezing process with the updated Platypus® Bite Valve Cover. The new shape ensures your cover stays closed and it fits with all Platypus hydration system bite valves.

$6.95
NEW: Fast-flowing bite valve works with all Platypus shutoff valves and 1/4" tubing
The HyFLO™ is a streamlined, one-piece bite valve that offers fast-flowing, self-sealing, leak-free performance. Made with a soft, taste-free, medical-grade silicone, the HyFLO stands up to years of use. The bite valve is included on all Big Zip™ EVO & Hoser™ Reservoirs and is compatible with all legacy Platypus shutoff valves.
$2.63
$3.50
25% Off
Threaded cap fits our screw-top bottles and reservoirs.
These secure, leak-free replacement caps fit Platypus flexible water bottles, reservoirs, and water tanks with threaded, screw-top openings. Package includes two caps.

$23.95
NEW: Insulates to prevent freezing and keeps water cool in the heat.
Fend off frozen drink tubes and help keep liquids cool in hot weather with the Drink Tube Insulator. The new design offers a completely covered bite valve (to keep it clean and protect it from freezing quickly), a reverse coil polyurethane-coated zipper (to prevent ice/snow build up), a large zipper pull (to easily open with one hand—even with gloves on), and a hook and loop closure shoulder strap attachment (to secure to a pack). Works with all Platypus® drink tubes and bite valves.
$119.95
PRODUCT DETAILS
The minimalist GravityWorks 2.0L Bottle Kit system is both ultralight and ultracompact, thanks to a simple adapter that easily connects the pump-free water filter system directly to a water bottle or hydration reservoir, conveniently filtering water for 1-4 people in the backcountry.
Bottle Kit: Minimalist setup uses a Universal Bottle Adapter to connect the system directly to an existing water bottle or reservoir*.
No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work.
Fast: Filters up to 1.5 liters per minute; filter lifetime up to 1,500 liters of water.
Effective: Meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa**.
Ultralight & Ultracompact: System can weigh as little as 6.6 oz. (187 g) and stows smaller than most 1L bottles.
Field-cleanable: Microfilter can be easily backflushed in 4 seconds to maintain filter performance.
Hollow Fiber Advantage: Hundreds of tiny, hollow fibers, enable the microfilter to filter water faster than traditional filter media.
Easy collecting & dispensing: Collecting water is easy—simply open the top, scoop water, and close; control delivery of filtered water with hose shutoff clamp.
Comes with: 2.0L Dirty reservoir, Hollow Fiber microfilter, Universal Bottle Adapter, hoses, storage sack
*Adapter interfaces with all Platypus bottles and most from MSR®, Nalgene®, Klean Kanteen®, CamelBak® and many more (these trademarks are not owned by Cascade Designs, Inc.)
**This includes Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
$139.95
Ultralight, ultracompact and versatile, the pump-free GravityWorks 2.0L Complete Kit makes it easy to filter water for 1-4 people. Whether directly into the included flexible bottle, a separate hard bottle or a hydration reservoir in a pack, filtering water is fast and easy thanks to gravity.
Complete Kit: Easily configure the system to your needs with the included 2.0L flexible water bottle and adapters* for maximum versatility and adaptability.
No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work.
Fast: Filters up to 1.5 liters per minute; filter lifetime up to 1,500 liters of water.
Effective: Meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa**.
Ultralight & Ultracompact: System can weigh as little as 6.3 oz. (180 g) and stows smaller than most 1L bottles (depends on configuration).
Field-cleanable: Microfilter can be easily backflushed in 4 seconds to maintain filter performance.
Hollow Fiber Advantage: Hundreds of tiny, hollow fibers, enable the microfilter to filter water faster than traditional filter media.
Easy collecting & dispensing: Collecting water is easy—simply open the top, scoop water, and close; control delivery of filtered water with hose shutoff clamp.
Comes with: 2.0L Dirty reservoir, 2.0L Platy™ bottle, Hollow Fiber microfilter, Universal Bottle Adapter, Push/Pull Cap Adapter, hoses, storage sack.
*Adapters interface with all Platypus bottles, push/pull “sport” bottle caps, and most bottles from MSR®, Nalgene®, Klean Kanteen®, CamelBak® and many more (these trademarks are not owned by Cascade Designs, Inc.)
**This includes Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
$154.95
Delivering 4 liters of filtered water in just 2.5 minutes with no pumping, the GravityWorks 4.0L system is the easiest and fastest way to get filtered water in the backcountry. Ideal for bigger groups or basecamps, the system has an 8-liter total capacity, easily providing filtered water for drinking, washing up, cooking, and cleaning.
No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work.
Fast: Filters up to 1.75 liters per minute; filter lifetime up to 1,500 liters of water.
Effective: Meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa*.
Ultralight & Compact: System weighs 10.75 oz. (305 g) and stows smaller than most 1L bottles.
Group-ready: 8 liter (4.0L filtered + 4.0L dirty) total capacity easily supplies water for groups.
Field-cleanable: Microfilter can be easily backflushed in 4 seconds to maintain filter performance.
Hollow Fiber Advantage: Hundreds of tiny, hollow fibers, enable the microfilter to filter water faster than traditional filter media.
Easy collecting & dispensing: Collecting water is easy—simply open the top, scoop water, and close; control delivery of filtered water with hose shutoff clamp.
Comes with: 4.0L Dirty reservoir, 4.0L Clean reservoir, Hollow Fiber microfilter, hoses, shutoff clamp, and storage sack.
*This includes Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
$79.95
This replacement filter for the GravityWorks water filter system is effective down to .2 microns and meets all EPA and NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa, helping treat water in the backcountry for safe drinking. Microfilter lifetime of up to 1,500L, depending on the quality of the water.

$159.95
Filtering up to 1.75 liters a minute without any pumping, the high-capacity GravityWorks Water Filter System filter is one of the easiest and fastest ways to get filtered water in the backcountry.
With two different sizes—6.0L & 4.0L—the GravityWorks is ideal for bigger backpacking groups or basecamps. Offering an 8 or 12 liter total capacity, either model easily supplies filtered water for drinking, washing up, cooking, and cleaning.
Simplify your water collection with the GravityWorks system and spend more time enjoying your group.
Filter Rate: Up to 1.75 litres per minute
Filter Life: Up to 1500 litres
Weigtht: 350g / 12.3oz

$29.95 - $35.95
UPDATED: Ultralight taste-free, minimalist reservoir with high flow rate.
The original Platypus® water reservoir that became a backcountry classic, the Hoser™ is an ultralight, minimalist hydration system that delivers taste-free hydration with a versatile, durable design that makes it great for backpacking, thru-hiking, and day hikes. Updates include a new self-sealing HyFLO™ bite valve that delivers a 30% increase in flow rate, making it quicker and easier to hydrate on the go.

$54.95
Light, fast, easy and reliable. The best water filter system per ounce, period
The QuickDraw Microfilter System draws upon decades of expertise in filtration and hydration to provide adventurers the best user experience of any fill-and-squeeze water filter on the market.
The easy-to-use system comes in two parts: the durable and taste-free 1L QuickDraw reservoir and the hollow fiber filter cartridge.
Weighing just 3.3 oz (95 g) and filtering up to 3L per minute, the QuickDraw system ensures quick and easy access to clean water on any adventure.
You can either shake-to-clean the hollow fiber filter or perform a tool-free backflush to ensure the fast flow rates will stick around for the duration of your trips.
With its inside/outside (I/O) dual-thread design, the QuickDraw filter cartridge securely adapts to smartwater® bottles and other Platy bottles and reservoirs allowing you to develop your ideal system to confidently explore the wilderness.

$9.99
Nothing’s cleaner, greener*, or more versatile than a Platypus SoftBottle flexible bottle. Whether you’re out running, catching a flight, or hitting the yoga studio after work, the SoftBottle flexible bottle is your source for easy hydration.
Platy’s most flexible water bottle.
Lightweight and packable – 80% less weight and bulk than a hard bottle.
Taste-free as well as BPA-, BPS-, and phthalate-free.
Food-grade liner with rugged exterior is pliable and durable.
Available with Closure Cap or Push-Pull Cap.

$11.95
Osprey’s Hose Magnet Kit allows you to secure non-magnetized hydration systems to the sternum strap on your pack. Improve the efficiency of your on-the-fly hydration delivery by upgrading to a combination magnetic sternum bite valve and strap.
-Magnet clip securely clips on any ¼” hose
-Sternum magnet attaches to sternum web for ideal bite valve placement

$13.95
Make any pack Hydraform Reservoir-compatible with Osprey's Hydraform Magnet Kit. This handy kit includes three detachable sternum-strap magnets.

$69.95
Osprey’s Hydraulics 2L Reservoir by Hydrapak is ideal for large-volume packs and long-duration activities. The HydroStatic backerplate provides structure for easy loading into a full pack and maintains a flat profile. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA-free, phthalate-free, lead-free, guaranteed. All materials are certified food safe according to FDA and EU regulations.

$13.95
Osprey’s Hydraulics Bite Valve provides a high-quality replacement for your old, neglected and beat up bite valve. The bombproof ¼ twist shut-off design guarantees you won’t experience any unpleasant leaks.

$48.71
$64.95
25% Off
Osprey’s Hydraulics® LT 1.5L Reservoir by Hydrapak is made for light and fast activities where weight and balance are critical. Twin-welded chevron baffles stabilize the water and maintain a flat profile. The streamlined design allows for easy loading into internal hydration sleeves. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA-free, phthalate-free, lead-free, guaranteed. All materials are certified food safe according to FDA and EU regulations.

$52.46
$69.95
25% Off
Osprey’s Hydraulics LT 2.5L Reservoir by Hydrapak is made for light and fast activities where weight and balance are critical.
Twin-welded chevron baffles stabilize the water and maintain a flat profile. The streamlined design allows for easy loading into internal hydration sleeves. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever.
All parts are BPA-free, phthalate-free, lead-free, guaranteed. All materials are certified food safe according to FDA and EU regulations.

$11.95
• Installs on any 1/4-inch (.635cm) hose for easy disconnect/connect.
• Bonus extra male piece and hose to connect to water filters.

$10.46
$13.95
25% Off
When it’s time to replace the hose on your existing hydration system, Osprey’s Hydraulics Reservoir Hose is the answer. Made of high-quality quarter inch tubing for dependable performance and featuring a high flow rate, it will bring new life to your hydration system. All parts are BPA-free, phthalate-free, lead-free, guaranteed. All materials are certified food safe according to FDA and EU regulations.

$14.95
Replacing old bite valve sheaths helps maintain a sanitary hydration system. Osprey’s Bite Valve Sheaths provide a soft surface for your chompers to sink into when you’re hydrating on the fly. Also perfect for those who can’t help but chew through the bite valve like their old #2 pencils in high school.
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