Best Gravity Filter Backpacking : Review And Buying Guide

[Efficient Filtration] Double filter system with Hollow Fiber Membrane and Carbon filter. Hollow Fiber Membrane Filter Pore size: 0.1 Microns; Carbon fiber improves taste, removes odor, and protects the UF filter for longer life capacity. Life Capacity: Hollow Fiber Membrane 6000 L/1500 Gallons； Carbon fiber: 300L/80Gallons. Both filters are replaceable.

[Large Capacity] With 1.5 gallons of large capacity, the gravity-fed bag can meet a family's or a group's water needs during your outdoor activities.

[Ultra Safe Material] The gravity-fed water bag is made of food-grade, BPA-free, ultra-safe, and ultra-durable material to ensure water safe all the time

[Versatile Uses]You can use the filter straw independently, or with a gravity water bag, or by adding an extension tube on the water straw for more distance, even connecting with water bottles.

[What's in the box] 6L water bag, Filter Straw, Adjustable Tree Strap, Detachable Tube

High-capacity, gravity-fed, hollow-fiber water filter system is ideal for group and family camping, outdoor adventures, and emergency preparedness

Meets all EPA/NSF guidelines for removal of 99.9999% of bacteria and 99.9% of protozoa, including giardia, cryptosporidium, E. coli, salmonella, cholera

No pumping required; reservoir fills easily and hangs from a tree to deliver four liters of filtered water for cooking and washing in 2.5 minutes

Includes 4-liter dirty water reservoir, 4-liter clean water reservoir, hollow-fiber microfilter, hoses, shutoff clamp, and storage sack

Replaceable cartridge filters up to 1,500 gallons; produces flow rate of 1.75 liters/minute; kit weights 11.5 ounces; made in the USA

PURIFY WATER ANYWHERE: Make sketchy water clean to drink. Ideal for outdoor adventures (hiking, camping, backpacking, fishing, hunting, bushcraft), global travel, and survival situations. Simply – Fill. Press. Drink!

REMOVES ALL PATHOGENS: Viruses (e.g. rotavirus, norovirus, hepatitis A), bacteria (e.g. E. Coli, salmonella, dysentery), and protozoa (e.g. giardia, cryptosporidium, amoebae).

FILTERS particulates (e.g. sediment, microplastics) and adsorbs volatile organic compounds (VOCs), PFAS, chemicals, pesticides, herbicides, heavy metals, flavors and odors

UNRIVALED SPEED & EASE: Purifies 24 oz (710ml) of water. Requires no setup time, pumps, hoses, sucking straws, batteries, chemicals, or prolonged waiting. Effortlessly purify from any spigot, hotel sink, murky river, lake, or well.

EMERGENCY PREPARATION: Equipped with replaceable purifier cartridge good for 65 gallons (250L). Perfect for home or car prep kit so you are ready for any natural disaster, water emergency, or survival situation.

💧 【5-Stage Efficient Filtration】With adoption of premium-quality coconut shell activated carbon, 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.

💧 【Professional Combination】Waterdrop Gravity Water Filter Straw with 1.5 gal Gravity-Fed Water Bag is an exclusive water purification combination created for outdoor activities and first aid survival. The large-capacity water bag can hold up to 1.5 Gallons of water at a time, which is about 11 bottles of 500 ml bottled purified water, and can meet the all-day demand for outdoor water drinking.

💧 【Longer Lifespan with Recyclable Straw】With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free; the Waterdrop Filter straw can provide safe drinking water up to 1,400 gallons (5,300 liters), and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.

💧 【Versatile Uses】The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.

💧【Warm Prompt】Note: If the gravity bag is used to filter water, turn on the drainage valve first to empty air from the hose before connecting with the straw to avoid no water flow in a vacuum state.

💧 【Multi-scene Application】As a necessity for outdoor water purification, the Waterdrop Gravity Water Filter Straw is applicable to hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations.

💧 【5-Stage Efficient Filtration】With adoption of premium-quality coconut shell activated carbon, 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.

💧 【Professional Combination】Waterdrop Gravity Water Filter Straw with 1.5 gal Gravity-Fed Water Bag is an exclusive water purification combination created for outdoor activities and first aid survival. The large-capacity water bag can hold up to 1.5 Gallons of water at a time, which is about 11 bottles of 500 ml bottled purified water, and can meet the all-day demand for outdoor water drinking.

💧 【Longer Lifespan with Recyclable Straw】With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free; The Waterdrop Filter Straw can provide safe drinking water up to 1,400 gallons (5,300 liters)/ one straw, and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.

💧 【Versatile Uses】The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.

💧【Warm Prompt】Note: If the gravity bag is used to filter water, turn on the drainage valve first to empty air from the hose before connecting with the straw to avoid no water flow in a vacuum state.

💧 【Multi-scene Application】As a necessity for outdoor water purification, the Waterdrop Gravity Water Filter Straw is applicable to hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations.

0.1 micron water filter removes harmful organisms like bacteria 99.9999% and protozoa like Giardia & Cryptosporidium 99.9%, surpassing EPA standards

Collapsible 3.0L hydrapak soft bottle flask packs down small

Ez-clean Membrane is simple and easy to clean by simply shaking or swishing the filter to clean debris, no backflushing or extra tools required

Filters up to 1, 000 liters of contaminated water without using chemicals or other devices and hydrate quickly and easily with the free flow channels fast flow rate

Made from durable BPA-free Thermoplastic Polyurethane

💧 【5-Stage Efficient Filtration】With adoption of premium-quality coconut shell activated carbon, 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.

💧 【Professional Combination】Waterdrop Gravity Water Filter Straw with 1.5 gal Gravity-Fed Water Bag is an exclusive water purification combination created for outdoor activities and first aid survival. The large-capacity water bag can hold up to 1.5 Gallons of water at a time, which is about 11 bottles of 500 ml bottled purified water, and can meet the all-day demand for outdoor water drinking.

💧 【Longer Lifespan with Recyclable Straw】With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free; The Waterdrop Filter Straw can provide safe drinking water up to 1,400 gallons (5,300 liters)/ one straw, and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.

💧 【Versatile Uses】The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.

💧【Warm Prompt】Note: If the gravity bag is used to filter water, turn on the drainage valve first to empty air from the hose before connecting with the straw to avoid no water flow in a vacuum state.

【Ultra Safe Materials】: The gravity water bag is built out of strong food-grade plastic. Manufactured with BPA free, ultra-safe and ultra-durable TPU material to ensure you can enjoy clean and safe water all the time.

【Versatile Uses】: Easily create a gravity-based water filtering system with the Waterdrop Filterstraw. Compatible with SAWYER water filter MINI Series, ect. Provide you enough reliable pure water anywhere, anytime.

【Outdoor Water Needs】: Fulfill all your outdoor water demands: hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations. Each bag only weights 0.29 pounds.

【Large Capacity】: With 1.5 gallons of large capacity, the gravity bag will keep you hydrated during your favorite outdoor activities. Share the freshness with the crew.

【Professional Filter Brand】: Top quality has always been our approach to water purification. We source our materials in accordance with the highest standards of the industry. Our professional team members vet every piece of the materials to ensure it meets those standards by researching ingredients, auditing sourcing practices, and testing products—all to make your shopping secured.

Easily create gravity-based water filtering system with 0.1 micron absolute dual-threaded Sawyer MINI water filter and 1-gallon reservoir

High-performance 0.1 Micron absolute inline filter fits in the palm of your hand and weighs just 2 ounces; 100% of MINI units individually tested three times to performance standards by Sawyer

Dual-threaded MINI allows you to use the flip top sports cap on the filter for easy on/off functionality; lightweight wide-mouth bladder for fast, easy filling; convenient carry handle

Versatile camping water filter system is great for travel, backcountry treks, emergency prepping, and disaster kits

Includes MINI Water Filter, 1-gallon bladder, cleaning plunger, cleaning coupling, and gravity hose with adapters

Protects against 99.999999% of bacteria (including E.coli, Salmonella); 99.999% of parasites (including Giardia and Cryptosporidium); 99.999% of microplastics, heavy metals, like lead, chlorine, organic chemical matter, silt, sand, and cloudiness; improves taste

Versatile water filter system, can be used 4 ways: as a personal straw filter, with the included gravity bag, as an in-line filter with most hydration packs or attached to most disposable water bottles

Compact and ultralight, the gravity water filtration system weighs 6.9 oz (196 g) and can filter a gallon of water in less than 10 minutes

Long-lasting membrane microfilter lasts up to 500 gallons (2,000 L); replaceable activated carbon + ion exchange filter lasts up to 26 gallons (100 L)

This product gives back: one purchase, one child, one year of safe water

LifeStraw is proud to a B Corp and Climate Neutral Certified brand, committed to meeting the highest standards of verified social and environmental performance, transparency and accountability

FILTERING MORE - Filters up to 2000 litres of natural fresh water without using any chemicals. 2000L clean and drinkable water in the backpack on the go.

GRAVITY WORK - Take use of gravity for filtration. Threads on filter both sides. The whole filtration system can be connected inline. Set up and hang it on the tree. The filtration process is automatic without watching.

BACKFLUSHING WITH EASE - Water filter lifespan can be extended by clean water backwash. Inverting clean water collapsible bottle (supplied) can backwash the filter immediately. A syringe for backflush is needless.

ENDURABLE WATER BLADDER - Food-grade premium quality materials. The water bladder passed the pneumatic pressure test. Slidelock design reservoir with a wide-mouth opening for fast, easy filling. Convenient and comfortable carry handle. It is not a laundry bag as other brands used.

ULTRA-LIGHT AND VERSATILE - L630 water filter can be screwed on 28mm thread disposable bottle. The entire system weighs 0.8 pounds. BUY WITH CONFIDENCE: Lifetime guarantee.

Extra-Large Capacity: After the survey, 6L capacity is the most appropriate solution for group water needs. Our water filter camping can provide you with enough sources of pure drinking water at any time and anywhere

4-Stage Filtration: Our camping water filter is made up of 0.1-micron hollow fiber ultrafiltration membrane, coconut shell GAC filter, and double PP fiber filter. Reducing 99.99999% of escherichia coli, test by SGS-CSTC Standards Technical Services Co., Ltd.Ningbo Branch (Test Report NBF21-004693-01, Date: 02 Jun 2021), filters up to 5,000 liters outdoors water

Superior Backwash Solution: Detachable mouthpiece connects with the common bottle for backwashing, no need for an extra syringe. No cumbersome fittings and lightweight. Easy carrying gravity water filter when putting all the parts in the storage bag

Versatile Use Ways: More ways you can find besides the gravity water filter system, like using as a water filter straw direct, or adding an extension tube on water straw for more distance using, even connecting with water bottles. Backpacking water filter offers you clean drinking water anywhere, anytime

Easy to Hang on Trees: Adjustable tree strap fits the most trunks, minimum length: 22.5 inches and maximum length: 41.5 inches. No worry about losing, thanks for the one-piece design

💧 【5-Stage Efficient Filtration】With adoption of premium-quality coconut shell activated carbon, 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.

💧 【Professional Combination】Waterdrop Gravity Water Filter Straw with 1.5 gal Gravity-Fed Water Bag is an exclusive water purification combination created for outdoor activities and first aid survival. The large-capacity water bag can hold up to 1.5 Gallons of water at a time, which is about 11 bottles of 500 ml bottled purified water, and can meet the all-day demand for outdoor water drinking.

💧 【Longer Lifespan with Recyclable Straw】With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free; The Waterdrop Filter Straw can provide safe drinking water up to 1,400 gallons (5,300 liters)/ one straw, and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.

💧 【Versatile Uses】The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.

💧【Warm Prompt】Note: If the gravity bag is used to filter water, turn on the drainage valve first to empty air from the hose before connecting with the straw to avoid no water flow in a vacuum state.

💧 【Multi-scene Application】As a necessity for outdoor water purification, the Waterdrop Gravity Water Filter Straw is applicable to hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations.

[High versatility] : Gravity water filter bag can be connected to water bag or water bottle, and both ends are detachable, compatible with lifestraw and sawyer water filter.

[Professional and efficient] : gravity filter bag uses 0.1um ultrafiltration membrane and other raw materials, after 5 stages of filtration can effectively filter the water particles, sediment, stone, sand, dirt, heavy metals and other harmful substances. water purifier has a life-span of up to 5,000 liters, and can help with lengthy camping trips and hikes.

[Large capacity ]: Our gravity water filter bag has a maximum capacity of 6L(1.5 gal), which is approximately equivalent to 11 500ml bottles of pure water and can give you enough water to use outdoors for a day. The gravity filter backpacking is a foldable, portable design that provides clean drinking water anytime, anywhere.

[Widely used] Survival gravity water filter bags are not only used in hiking, camping, traveling, etc., but also can meet emergency water needs in the case of natural disasters (tornadoes, rainstorms, earthquakes, floods, etc.)

[Perfect service] : If you are not satisfied with the gravity filter purchased, we provide free return and replacement business, if you encounter any problems in the process of using the gravity filter system, please tell us, we will solve for you 24 hours.

Very Versatile: Besides the gravity water filter system, the included filter can be used in many different ways. Use as a personal water filter, or add a 29.5-inch extension tube for more distance drinking. Even connect onto a water bottle.

Long Lifespan and Speedy Treatment Time: Our water purifier camping has a lifespan of 5,000 liters (1320gallons), for a family of four uses up to 3.5 years. With a flow rate of 27 liters per hour, it won’t slow you down when you’re trying to make miles.

0.1-micron Ultrafiltration: Our water filter camping made up of 0.1-micron hollow fiber ultrafiltration membrane, 5-micron coconut shell GAC filter, and 0.2-micron PP fiber filter.

Easy to Use: Just hang on a tree with the tree strap, hands-free filtration, enjoy effort-free (no pumping, no squeezing, barely any waiting) filtered water within minutes.

Very Lightweight: Gravity water filter weighs just 2.8 ounces and can be completely rolled up to save space in your backpack. With 3L TPU gravity-fed bag can provide you enough reliable clean water. Ideal for backpacking, camping, or just keeping on hand for emergencies.

✅100% MONEY BACK GUARANTEE. The Inline Water Purifier is easy to add to your existing bladder hydration pack for backpacking, hiking, and climbing. Works with any hydration pack which has a tube. Perfect water purification solution for all who use hydration bladders in their backpacks.

✅ REMOVES E.COLI, PROTOZOAN, LEAD & HEAVY METALS. Removes 99.9999% of all salmonella, cholera, and E.coli; 99.99% protozoan, such as giardia and cryptosporidium; REMOVES 99.5% LEAD. Best survival water purification system.

✅ ULTRALIGHT BACKPACKING WATER FILTER. Light weight (5 oz) compacts easily. Ideal portable water filter for hiking, camping, backpacking. Purifies ANY non-salt water source immediately. No waiting, squeezing, pumping, chemicals, ultraviolet bulbs or batteries. Best water purification for backpacking, hiking, camping, outdoor recreation, scouting, & emergency preparedness.

✅ USE AS A GRAVITY FED WATER FILTER OR STRAW FILTER. The Inline quickly converts into a Gravity Fed Filter or straw water filter by releasing the purifier from the bladder via the quick connects. ideal for hiking, camping, travel and emergencies; easily include in disaster kits and bug out bags.

✅ TESTED AND PROVEN. The Journey Purifier Filter used on the Inline Water Purifier has been tested and certified by independent water laboratories to safely purify 250 gallons of water. Exceeds EPA water filter standards.