The route isn't over. Your water nearly is.
Only one bottle left, and the trail's still long. Every sip suddenly counts.
PERSONAL OUTDOOR WATER FILTER
Ready When Water Isn't
When water may not be within reach, readiness still can be.
Lightweight and pocket-sized — one more option for your pack, car, or emergency kit.
Light enough to carry. Ready when you need it.
THE MOMENT
When you need water most, it may not be there.
The route runs longer than planned. Your bottle is nearly empty. There's no store nearby. Or your vehicle stops somewhere remote.
In that moment, the last question you want to ask yourself is: what now?
Far from resupply, with nowhere to buy.
No store for miles. When your water runs out, leaving early becomes the only option.
A sudden need, with no tool on hand.
A breakdown, an outage, a disruption — emergencies rarely give you any notice.
You don't need to wait until water runs short to start preparing.
THE BACKUP
So a backup should be small enough that you'll keep carrying it.
Bigger systems may do more — but you won't carry one every day.
ChillFork is the one you actually will.
Packs Away
Compact storage, without carrying a large system just to have a backup plan.
Works Your Way
Direct drinking, a 28mm bottle, squeeze, or gravity filtering — choose the method that suits your gear.
There When You Need It
Keep it in your pack, your vehicle, or your emergency kit, instead of searching at the last minute.
FIELD USE
One filter. Four ways to use it outdoors.
Your route changes. The way you use it can change with it.
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01
Direct Drink
Close to a suitable water source, use the filter directly as instructed in the product manual.
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02
28mm Bottle
Connect it to a bottle with a compatible 28mm threaded opening for easier collection, carrying, and drinking.
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03
Squeeze Filtering
Use a squeezable pouch or compatible bottle to push water through the filter element.
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04
Gravity Filtering
Hang a pouch higher up and let gravity do the filtering.
You don't need to rearrange the whole trip. Just carry one more prepared tool.
View All Four MethodsUSE & CARE
If it isn't complicated, you'll actually take it with you.
Spend a little time preparing before use, so there's less uncertainty when you actually need it.
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01
Flush First
Before first use, flush the filter element and connections with clean water as directed in the manual.
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02
Use As Needed
Choose direct drinking, a bottle connection, squeeze filtering, or gravity filtering to suit your equipment.
-
03
Clean After Use
Flush both ends of the product and its connections as instructed in the manual.
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04
Backwash & Store
Use a compatible bottle for tool-free backwashing, then drain it and store it somewhere dry.
Care noteBackwashing cleans it — it doesn't make it last forever. Check the manual for replacement timing.
Learn How To Use ItWHY PEOPLE ACTUALLY BUY THIS
Not About the Gear. About How You'll Feel Holding It.
Across every review, three reasons keep coming back — not specs, but what the product actually gives someone.
The Feeling of Already Being Ready
Not for daily use. For the one day you're glad it's there.
Water You Can Actually Drink
Turns a stream, a stopped tap, or an empty bottle into safe water.
Small Enough to Never Leave Behind
Pocket-sized, so 'I'll bring it next time' never has to be the plan.
CERTIFIED PROTECTION
Independently Tested. Water You Can Actually Trust.
Coarse to fine, each layer removes more — while activated carbon keeps the taste and minerals in.
0%
Bacteria Removed — Independently Tested
5-STAGE FILTRATION
- Coarse screen
- PP cotton (pre-filtration)
- PP cotton (second layer)
- Activated carbon
- Hollow fiber UF membrane
Coarse
0.1 Micron
Tested to remove 99.9999% of bacteria like E. coli — so water that looks clean actually is.
Filtration is not disinfection. Do not use for chemically contaminated water, oily water, seawater, toxins, or radioactive contamination.
THE DIFFERENCE
What you need isn't more gear. It's gear you'll actually carry.
Without A Backup
Start looking for a solution after the water runs out
Carry more bottled water
Only one way to use it
Hard to deal with after use
One Within Reach
Already prepared before you leave
Packs light into your bag
Direct, bottle, squeeze, or gravity
Clean and backwash as instructed
Less weight. More control.
FIELD NOTES
What they bought was more than a water filter.
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I have not used it yet. I have it on hand for emergencies. I put one in my glove box in my car.
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It gives me a lot of peace of mind knowing it's ready if we ever need it.
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Works good and packs light.
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Have used about 150 times so far... and it's still going strong.
Some buy it for today. Others buy it so they never have to regret not having it.
FAQ
Questions before you pack it.
Clear answers, so you understand where this filter fits — and where it doesn't.
I already carry bottled water. Why would I need this?
Your bottled water is still primary. This is the backup for when it runs out or resupply isn't nearby.
Can it handle every water source?
No. Only use it with suitable water sources per the manual — not chemically contaminated, oily, or seawater.
Can it remove viruses?
Not unless the product's test report explicitly covers viruses. Filtration and disinfection aren't the same thing.
Which bottles can I connect?
Bottles with a compatible 28mm threaded opening. Necks vary by brand, so check compatibility first.
How long can I use it?
Up to ~1,320 gallons / 5,000L, but real lifespan depends on water quality and care. Follow the manual.
What should I do before first use?
Flush it with clean water first, as the manual directs. Clean and store it the same way after use.
Product Description
A portable 5-stage water filter straw — coarse screen, double-layer PP cotton, coconut-shell activated carbon, and a hollow-fiber ultrafiltration membrane. NSF/ANSI 42, 372 & 401 certified, removes 99.9999% of bacteria including E. coli, and doesn't strip out natural minerals.
Why You Need It
Bottled water is your primary supply. This is the backup for when it runs out or resupply isn't nearby — a stream, a stopped tap, or an empty bottle turned into safe drinking water, right where you are.
How to Use
Flush the filter with clean water before first use, as the manual directs. Drink directly, thread onto a compatible 28mm bottle, or use with a squeeze pouch or gravity setup. Clean and store the same way after use.
What It's Made Of
Food-grade, BPA-free ABS plastic. 7.1 inches long, 2 ounces. Fits any 28mm threaded bottle, cup, or glass — small enough for a pocket, backpack, or glove box.
What's Included
Standard — filter straw & lanyard.
Shipping & Returns
Free shipping on qualifying orders. See our returns policy for details.
ChillFork Water Filter Straw
NSF/ANSI 42, 372 & 401 certified. 5-stage filtration. Ready when you need it.
Excellent4.7 out of 5 (10,657 ratings)
- NSF/ANSI 42, 372 & 401 Certified
- Removes 99.9999% of Bacteria
- 0.1 Micron Filtration
- Fits Standard 28mm Bottles
Ready to ship — estimated delivery:
Sep 19
Refills Ship Every Month|Cancel Anytime
5
“Works good and packs light.”
Dogstar, 34 years
Product Description
A portable 5-stage water filter straw — coarse screen, double-layer PP cotton, coconut-shell activated carbon, and a hollow-fiber ultrafiltration membrane. NSF/ANSI 42, 372 & 401 certified, removes 99.9999% of bacteria including E. coli, and doesn't strip out natural minerals.
Why You Need It
Bottled water is your primary supply. This is the backup for when it runs out or resupply isn't nearby — a stream, a stopped tap, or an empty bottle turned into safe drinking water, right where you are.
How to Use
Flush the filter with clean water before first use, as the manual directs. Drink directly, thread onto a compatible 28mm bottle, or use with a squeeze pouch or gravity setup. Clean and store the same way after use.
What It's Made Of
Food-grade, BPA-free ABS plastic. 7.1 inches long, 2 ounces. Fits any 28mm threaded bottle, cup, or glass — small enough for a pocket, backpack, or glove box.
What's Included
Standard — filter straw & lanyard.
Shipping & Returns
Free shipping on qualifying orders. See our returns policy for details.
READY BEFORE YOU NEED IT
Don't wait for the last drop to start preparing.
You can't predict when water runs short.
You can choose to be ready today.
CHILLFORK
Personal Outdoor Water Filter
Blue · 2-Pack · From $29.99
Be Ready NowFree shipping · 1-Year Warranty · Secure checkout