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1,059+ Trusted Reviews

PUREFLOW 
emergency WATER FILTER STRAW

SHOP NOW

1,059 Trusted Reviews

PUREFLOW 
emergency WATER FILTER STRAW

SHOP NOW

your water secured

99.9% bacteria filtration

up to 1,800 gallons

ultra-light & portable

no electricity or batteries

Emergency Water Filter Straw
Emergency Water Filter Straw
Emergency Water Filter Straw
Emergency Water Filter Straw

Excellent On-Site 1,059+ Reviews

Emergency Water Filter Straw

removes 99.9% of bacteria down to 0.01 microns

third-party lab tested for bacteria & protozoa protection

filters up to 1,800 gallons of water

advanced hollow fiber membrane built for long-term use

bpa-free, fda-grade materials

no added chemicals, no plastic taste

individually inspected for best performance

every straw is tested before leaving our facility

Learn More

FDA Approved Materials

Built For Emergencies

3rd Party Tested & Approved

Product Overview

 

Why Serious Preppers Are Switching to PureFlow

 

Most water filter straws on the market were designed for weekend hikers. They expire in your bag. They filter at 0.1 or 0.2 microns. They tap out at 500–1,000 gallons. That's fine for a campsite — but in a real grid-down scenario, you're not drinking from a mountain stream. You're sourcing water from a creek behind your neighborhood, a drainage ditch, or standing rainwater.

 

The PureFlow straw filters to 0.01 microns — that's 10x finer than other common brands. It removes 99.9% of bacteria (E. coli, salmonella, cholera), protozoa (giardia, cryptosporidium), and microplastics. The waterborne threats that'll put you down when there's no hospital running.

 

It filters 1,800 gallons from a single straw. 

 

It never expires. Drop it in your bug-out bag today and it works identically whether you need it next month or in ten years. No rotation. No maintenance. No chemical degradation.

 

Two ounces. Fits in the palm of your hand. Your kids can carry their own. At this price point, every family member should have one — and every bag, vehicle, and kit should have a backup.

How It Works — No Power, No Training, No Moving Parts

stage 1 — pre-filter mesh: captures sand, silt, sediment, and debris. protects the internal membrane and extends the straw's lifespan — critical in murky, real-world water sources you'd actually encounter in an emergency.

 

stage 2 — 0.01 micron hollow fiber membrane: water is forced through thousands of microscopic fibers that physically block bacteria, protozoa, and microplastics. nothing chemical. nothing electric. pure mechanical filtration that works when every other system fails.

 

stage 3 — clean water outlet: filtered water exits through the mouthpiece for immediate, safe drinking. no waiting 30 minutes for purification tablets. no boiling. you find water, you drink water.

 

first use: draw water through 3–5 times to prime the membrane and flush any residual manufacturing dust. after that, it's ready whenever you are — even years later.

Shipping

orders ship within 2–3 business days and arrive within 10 business days. tracking available after 48 hours.

 

every single unit is individually inspected and tested in our north american facility before shipping. we don't do batch sampling. every straw gets verified for membrane integrity and leak resistance.

Honest Filtration & Safety

know your gear. know its limits.

 

made from bpa-free, fda-approved materials. the pureflow straw removes 99.9% of bacteria, protozoa, and microplastics through mechanical microfiltration.

 

it does not remove viruses, chemicals, or heavy metals. we're upfront about this because your survival depends on understanding your equipment's capabilities. for virus protection, pair with purification tablets or uv treatment. for chemical contamination, you'd need activated carbon or reverse osmosis.

THOUSANDS OF AMERICANS ARE ALREADY PREPARED

WHY AREN'T YOU?

GET YOURS NOW

US

THEM

PureFlow redefines portable water filtration with ultrafiltration precision, verified lab testing, and certified materials built for real-world reliability.

How it compares

Verified 99.9% Bacteria & Protozoa Removal

Filter capacity: 1,800 Gallons

⚠️ 1,000 gallons

FDA-Approved

BPA-Free Materials

⚠️ undisclosed / not tested

Independent Lab Tested

Batch-Inspected for Quality

⚠️ limited / not verified

Don’t Wait For “What If.”

Safe water is the simplest, smartest prep. Put one in every bag today.

PREPARE NOW

FAQs

Can I store this in my bug-out bag for years without maintaining it?

Yes. The PureFlow straw has no expiration date. Store it sealed in a cool, dry place — your BOB, GHB, vehicle kit, or basement cache — and it works the same on year one as year ten. No rotation, no maintenance. Just make sure it's completely dry before long-term storage to prevent mold.

How does 0.01 micron compare to other common brands?

Common straws filter to 0.1 microns. PureFlow filters to 0.01 microns 10 to 20x finer. In a real emergency you're not drinking from a clean stream. You're dealing with urban runoff, standing water, ditches. Tighter filtration means fewer threats getting through.

Does it remove viruses, chemicals, or heavy metals?

No. The PureFlow straw is a mechanical microfilter — it removes bacteria, protozoa, and microplastics. Not viruses, chemicals, or heavy metals. We're upfront about this because your life depends on knowing your gear. For viruses, pair with purification tablets or UV treatment. For chemicals, you need activated carbon or RO.

1,800 gallons, how long does that actually last?

At one gallon per day (minimum recommended), that's nearly 5 years from a single straw. Competitor straws that cap at 500–1,000 gallons give you a fraction of that lifespan. In a prolonged grid-down scenario, capacity isn't a nice-to-have — it's everything.

How many should I buy for my family?

The rule is two is one, one is none. At minimum, one per family member. Most prepared families order 3–5 to cover their BOB, vehicle kit, GHB, and home cache. Your kids can carry their own — the suction design is simple enough for supervised use.

What water sources can I use it with?

Rivers, lakes, streams, ponds, puddles, rainwater collection, ditches — any freshwater source. Do not use with saltwater or industrial chemical runoff. In a grid-down scenario, this covers the vast majority of water you'd encounter.

Does it have an expiration date?

No. Store it sealed and dry and it's ready indefinitely. This is one of the biggest advantages over competitors — you're not rotating stock or checking dates. True set-and-forget preparedness.

Where is it made?

Assembled in China under strict QC standards. Every single unit is individually inspected and tested at our North American facility before shipping. Not batch sampling — every straw gets verified.