Excellent 4.8 out of 5 Reviews

6L Gravity Water Filter System

$59.99
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Limited time | Each purchase includes:

  • Home Ready Binder (Printable PDF) Home Ready Binder (Printable PDF)Your family plan for winter storms & power outages. $19FREE
How does it work?

Fill the 6-liter bag, roll the top closed and hang it from a hook, a door frame or a tree branch. The hose runs down from the bottom of the bag to the filter. Gravity pushes the water through the filter, and filtered water runs out the end into your pot, bottle or cup. You don't pump or suck on anything.

What does it filter out?

The 4-layer filter is built around a 0.1-micron hollow-fiber membrane and a coconut carbon layer. The membrane catches sediment, grit and the particles that make water cloudy, and the carbon helps with bad taste and odor. It is a filter, not a purifier: it is not made to remove salt, chemicals or viruses. If officials say your water may be contaminated, follow their advice to boil or treat it.

What water can I use it with?

Fresh water: stored water, a rain barrel, the tank of your water heater, or a lake, river or stream when you camp. Do not use it with salt water, pool water, or water that may contain fuel or chemicals, such as floodwater from roads.

Does it need power, batteries or chemicals?

No. Gravity does all the work, so it keeps working when the power is out. There is nothing to charge and nothing to add.

How long does the filter last?

The filter slows down as it collects sediment. Start with the clearest water you can find, and let muddy water settle first. If the flow stays slow after cleaning, or the filter has frozen while wet or cracked, replace it.

How do I clean and maintain it?

After each use, rinse the bag, empty it, and let the bag, hose and filter dry completely before you pack them away, so mold can't grow. Check the filter for cracks or damage before each use.

How do I store it? Can it freeze?

Store it clean, dry and rolled up in a closet, a go-bag or the car. A wet filter must not freeze: ice can damage the membrane. In winter, keep a used filter inside the house or close to your body.

What's in the box?

A 6-liter (1.6-gallon) roll-top bag with a liter scale, a 4-layer 0.1-micron filter, a 1-meter hose, and a hanging strap with clip hooks.

What about shipping, returns and warranty?

Every order ships with tracking. If you're not happy, contact us within 30 days of delivery for a full refund. If a part arrives damaged or missing, tell us and we'll send a replacement.

Details and specs

Hang it, fill it, and let gravity do the work. The 6L Gravity Water Filter System holds 1.6 gallons per fill and runs it through a 4-layer filter, built around a 0.1-micron hollow-fiber membrane and coconut carbon, into your pot, bottle or cup. Nothing to pump, nothing to suck on, and no batteries.

Keep it in a closet for power outages and boil-water days, in the car for winter roads, or in a camping bag for the trail.

What's in the box

  • 6-liter (1.6-gallon) roll-top water bag with liter scale
  • 4-layer 0.1-micron hollow-fiber filter with coconut carbon
  • 1-meter hose
  • Hanging strap with clip hooks

Specs

  • Capacity: 6 L (about 1.6 gallons) per fill
  • Filter: 4 layers, 0.1-micron hollow-fiber membrane and coconut carbon
  • Bag: food-grade TPU, roll-top closure with buckle
  • Power: none needed
  • Size: about 45 x 23 cm (17.7 x 9 in) when flat

Good to know

For fresh water only. Do not use it with salt water or water that may contain chemicals, such as fuel or floodwater from roads. It is a filter, not a purifier. If officials say the water may be contaminated, follow their advice to boil or treat it. Clean and fully dry the bag and filter before storing, and check the filter for damage before each use.

See it in action

Clean Water, Ready When You Need It

Everything your family needs to filter water, packed small enough for a bag, a closet or a car kit.

Explore the system

What's Inside the AQUAFLOW

Tap any part to learn more

Gravity bag, filter straw, hose, connector and hang strap laid out flat

6L Gravity Bag

Water collection & storage

Collapsible roll-top bag holds 6 liters of unfiltered water. Fill it at any freshwater source, roll the top, clip the buckle and hang it up. Gravity does the rest, no pumping.

6 LCapacity
Roll-TopBuckle seal
CollapsiblePacks flat
LiterScale printed

Water Filter Straw

The heart of the system

Slim inline filter with a 0.1-micron hollow-fiber membrane inside a multi-layer cartridge. Water runs through it on its way out of the bag, so you fill bottles and pots hands-free.

0.1 µmHollow fiber
4-LayerCartridge
No PowerGravity fed
Clear CapOutlet cover

100 cm Flexible Hose

Water transfer

Clear, flexible hose runs from the bag down to the filter. A full meter of length lets you hang the bag high and still reach a pot, bottle or jug on the ground.

100 cmLength
ClearSee the flow
FlexibleCoils small
Push-FitConnects

Quick-Connect Valve

Tool-free setup

Small connector that snaps the hose onto the bottom of the bag. No tools, no threads to strip. Take it apart in seconds to pack it away.

Snap-OnFitting
Tool-FreeSetup
SecondsTo connect
CompactPacks inside

Hang Strap w/ Carabiners

Hands-free setup

Black nylon strap with two clips. Hang the full bag from a branch, a hook, a door frame or a car roof rack and let it filter while you do something else.

2Carabiners
NylonStrap
HangAnywhere
Hands-FreeFiltering

Family Ready gravity filter vs. a water straw

A straw is made for one person, one sip at a time. This is made for the whole house.

Gravity filter
Water straw
1.6 gallons per fill
One sip at a time
Fills pots, bottles and cups
You drink on the spot
Gravity does the work
You have to suck hard
Easy for kids and grandparents
Hard for little lungs
Hangs and works while you do other things
You hold it the whole time
Get yours ready

30-day money-back guarantee

How it works

  1. Fill it

    Fill the 6-liter bag from stored water, a rain barrel or a stream, and roll the top closed.

  2. Hang it

    Hang it from a hook, a door frame or a tree branch, with the hose and filter hanging down.

  3. Let gravity work

    Water runs down the hose and through the 4-layer filter. No pumping, no batteries.

  4. Fill your bottles

    Filtered water runs out the end. Fill pots, bottles and cups for the whole family.

30 Day Money-Back Guarantee

We think you'll keep it. If it's not right for you, send it back within 30 days of delivery for a full refund.

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  • 30-day money-back
  • Tracked shipping
  • Easy returns

Rated 4.9/5 based on 128 reviews

Customer Reviews

Sandra H.
Sandra H. Verified Buyer
“We had a boil-water notice last spring and I spent two days boiling pots on the stove with three kids underfoot. Never again. I filled the bag at the sink, hung it on the cabinet knob, and the kids thought it was the coolest thing ever watching the water drip through. It folds up small enough to fit in the drawer with our flashlights. Wish I'd bought it before last spring.”
6L Gravity Water Filter System $59.99 $119.98
Harry B.
Harry B. Verified Buyer
“We're on a well out here, so when the power goes, so does the water. Pump won't run without it. I set this up on the porch rail to try it out and it did what it says. No pumping, no squeezing, just hang it and let gravity work. Bag is tougher than I expected and the roll-top seals tight. I'm buying a second one for my brother.”
6L Gravity Water Filter System $59.99 $119.98
Matt & Katie
Matt & Katie Verified Buyer
“We keep an emergency bag in the car for road trips and camping, and water was the one thing we never had a good answer for. This rolls up small and weighs almost nothing. We used it at a campsite last month and filled it straight from the lake. Only reason for 4 stars: the hose takes a minute to figure out the first time. Watch the setup video first and you'll be fine.”
6L Gravity Water Filter System $59.99 $119.98
Greg W.
Greg W. Verified Buyer
“After the last hurricane season I wanted water covered for the family, not just more cases of bottles in the garage. Hung it off the tree in the backyard to see how it works. Filled it, hung it, done. It's simple enough that my wife or my 12-year-old could set it up without me. That was the whole point. Now it's in the go-bag.”
6L Gravity Water Filter System $59.99 $119.98