Fortisk Water Survival Kit
When the tap stops, your family still has clean water. Fill the bag from a creek, pond or rain barrel, hang it up, and gravity does the rest. Be ready before you need it.
$64.98
/ kit
Regular price per kit
$79.95
Save $29.95
- Removes 99.99% of bacteria
- Family-size 1‑gallon bag
- Up to 1,500 gallons per filter
- Packs flat, about 6 oz
90-day money-back guarantee
Try it at home, at camp or in the car. If it's not for you, email us within 90 days for a full refund.
Order today, get it by
- Order Today
- Ships In 1 business day
- Arrives 4–7 business days
Just wanted another option sitting there, and now we have one.
What's in the box
- 1-gallon gravity bag with hang strap and carabiner
- 0.1-micron hollow-fiber filter
- Hose with flow-control valve
- 1-gallon clean-water pouch
- Drinking mouthpiece
- Backflush syringe
- Quick-start card with winter-care instructions
Specs
- Filter: 0.1-micron hollow fiber
- Removes: 99.99% of bacteria and protozoa
- Rated for: up to 1,500 gallons per filter
- Bag: about 1 gallon
- Weight: about 6 oz empty
- Power needed: none
- Not rated for: viruses, chemicals, heavy metals or salt water
Shipping and returns
Orders ship within 1 business day, with tracking by email.
Try it for 90 days. If it's not right for you, email us and we'll refund you in full.
Secure checkout
How it works
Fill it. Hang it. Drink.
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Step 1
Fill
Scoop up to a gallon from a creek, pond, lake or rain barrel, then roll the top of the bag closed. If the water is muddy, let it settle in a bucket first and pour in the clearer water from the top. The filter lasts longer that way.
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Step 2
Hang
Hang it by the strap from anything sturdy above your pot: a hook, a tree branch, the top of a door or a fence post. Gravity pulls the water down through the 0.1-micron filter, so there's no pumping and no power. The higher it hangs, the faster it flows.
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Step 3
Drink
Set a pot or the clean-water pouch under the hose and open the valve. Filtered water runs out on its own while you get on with other things. If the flow slows down, push clean water back through with the included syringe and it picks right back up.
Drag to compare
From cloudy creek water to a clean glass
Creek and pond water can look clean and still carry bacteria and parasites like Giardia. Every drop runs through hollow fibers with pores just 0.1 micron wide, which remove 99.99% of bacteria and protozoa along with the silt that makes water cloudy.
Reviews
What Owners Say
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AI-generated illustration · not a customer photo.
Home kitKeeping this with the lanterns
I'm 68 and haven't camped in years. Bought this for the house. Tried it at the kitchen sink when it came, then packed it with our lanterns and spare batteries. Nothing too complicated once I read through the instructions. We still keep bottled water. Just wanted another option sitting there, and now we have one.
Frank Miller -
AI-generated illustration · not a customer photo.
CampingSuits the way we camp now
Wife and I do a lot more camping since retiring. I've used a pump filter for years and got tired of standing there pumping. With this I can hang the bag and get on with breakfast. You do have to give it time. Doesn't bother us, we're not in much of a hurry these days.
Mike R. -
AI-generated illustration · not a customer photo.
Truck kitFits behind the seat
Kept a small kit in every truck I've owned. Added this to the current one. Packs down smaller than I thought. Haven't needed it out on the road yet.
David Patterson
Glad I tried it first
A full bag was heavier than I expected. Started again with less water and that was easier for me to hang up. Glad I figured that out at home!
Karen S.
does the job
took a minute to get the hose sorted but pretty easy after that. one less thing to charge on camping trips 👍
Alex T.
For the house, mostly
Honestly I kept seeing the ad and wasn't sure. We're not outdoorsy people at all. But I wanted to get a few things together for the house and this was one of them. My daughter helped me unpack it on Sunday. We gave it a try and put it all back in the bag together so nothing gets lost.
Debbie L.
Read up before you put it away
Decent little kit. Took me two reads of the instructions to be sure I had everything right. Showed my grandson how it goes together while he was over. Would suggest doing that before putting it away for an emergency.
Ron Harris
No complaints so far
Bought it for the camper. Tried it at home. Packed it away. No complaints so far.
Gary B.
By the numbers
Up to a year of water for a family of four*
- 0.1micron Hollow-fiber pore size
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1,500 gal Rated per filter* - 0watts No power, pump or batteries
- 6oz Empty weight. Packs flat
*Based on one filter's rated 1,500 gallons and the CDC guideline of 1 gallon per person per day. Filter life depends on your water.
How is this different from other filter systems?
Most other systems were made for a different job. Here's where they fall short as a family's backup when the tap stops:
- Filter straws serve one person drinking straight from the source. You can't fill a pot with one.
- Pump and squeeze filters need your hands the whole time. That's a lot of work for a family's daily water.
- Tablets and drops take 30 minutes or more to work, can leave a taste, and don't take out dirt or cloudiness.
- Pitcher and fridge filters are made for treated tap water, not for creek or rain-barrel water.
- Countertop systems are bulky, stay on the counter and usually cost a lot more.
This kit fills pots and jugs for the whole family, hands-free, with no power or pumping. It packs flat for the car, and you get 90 days to try it at home.
How many do I need?
One for each place you'd want water. Most families start with two: one at home and one in the car. A third or fourth covers your parents' house or a second car. Bigger bundles cost less per kit, and 3 or 4 kits come with a free spare filter.
How long does one filter last?
Each filter is rated for up to 1,500 gallons, depending on how dirty the source is and how often you backflush. Letting muddy water settle first helps it last.
How fast does it filter?
It depends on how high you hang it and how clear the water is. Hang it higher for a faster flow. When the flow slows down, backflush it with the included syringe and it picks back up.
Time your first gallon at home so you know what to expect.
Does it remove viruses?
No. Hollow-fiber filters like this one aren't rated to remove viruses. If your source might contain sewage, like floodwater or a creek below a failed septic system, filter first, then boil or disinfect.
Can I use it during a boil-water notice?
Yes, as the first step. During a boil-water notice, filter the water, then boil it, as the CDC advises. The filter takes out dirt, bacteria and parasites. Boiling covers viruses, which this filter isn't rated to remove.
Can I use pool water, floodwater or salt water?
No. It doesn't remove pool chemicals, fuel, heavy metals or salt, and floodwater can carry all of them, plus sewage. Stick to fresh sources: creeks, rivers, lakes, ponds and rain barrels.
What about winter?
Once the filter has been used, keep it where it won't freeze, and dry it fully before long-term storage. If a kit lives in a vehicle, bring it inside for the cold months.
Can older folks and kids use it?
Yes. There's no pumping and no hard sucking. Hang the bag, open the valve, and water runs into a pot or pouch. A full bag weighs a little over eight pounds.
What if it's not for me?
You have 90 days. Email us and we'll refund you in full.
Why it matters
When the grid goes down, your tap goes with it
You can get through a night without lights. Not without water.
- No power, no pumps Electric pumps push city water to your tap. In an outage, they stop.
- About a day How long storage tanks usually keep water flowing after the pumps stop.
- About 7 weeks How long boil-water notices lasted in Jackson, MS (2022) and Asheville, NC (2024).
The tap stops. Your gravity kit doesn't.
Get the kitSources: Snyder & Associates on water-tower storage; NPR (2022) on Jackson's boil-water notice; U.S. EPA (2024) on Asheville's.
How it stacks up
The backup that doesn't run out
Fortisk Water Survival Kit
| Stored bottles | Straw filter | Boiling | |
|---|---|---|---|---|
| Works with no power or fuel | Yes | Yes | Yes | No |
| Makes new water from any fresh source | Yes | No | Yes | Yes |
| Water for the whole family | Yes | Partly | No | Partly |
| Fits in a drawer | Yes | No | Yes | Yes |
Our promise
90 days to put it to the test
Try it at home, at camp or in the car. Not for you? Email us within 90 days for a full refund.
Peace of mind
Be ready before the next boil notice
Keep one at home and one in the car, so your family has clean water whenever the tap stops.
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