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4,752+ Reviews

ReadyFlow Filter Straw

A single outage or disaster will leave 90% of families with no clean water.

  • Filters out 99.9999% of bacteria & parasites
  • 400 gallons of military-grade filtration per straw
  • Operates without electricity or batteries
  • BPA-free, FDA-grade materials with no expiry
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Water Filter Straw Bundle 1 Save $24
Water Filter Straw Bundle 1
$35.99
$59.99
Water Filter Straw Bundle 2 Save $60
Water Filter Straw Bundle 2
$59.99
$119.99
Water Filter Straw Bundle 10 Save $410
Water Filter Straw Bundle 10
$189.99
$599.99
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1

After Each Use

Blow air back through the mouthpiece to clear the filter. That’s it.

2

Optional Deep Clean (Every 100 Gallons)

Mix ¼ tsp bleach with 2 cups of water (use filtered water if tap is unavailable). Pour through the mouthpiece with the bottom cap closed. Let stand 5 minutes, then flush by filtering a few cups of water.

3

Long-Term Storage (1+ Year)

Deep clean first, then store the straw submerged in salt water (1 tsp salt in 2 cups water) with both caps open. Keep in a cool, dry place. Keeps the filter ready to use and prevents clogging.

4

Resume Use

Blow out any remaining salt solution. Discard the first few sips — they may taste salty.

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1

Real People. Real Results.

See why thousands trust the ReadyLine Filtered Straw with their family's safety.

What Is Inside Your ReadyLine Filter Straw

0.1 Micron Hollow Fiber Membrane
Removes 99.9999% of bacteria & parasites
Medical-Grade Cotton Filter
Filters sediment & large particles
Activated Carbon Filter
Eliminates chlorine, odor & bad taste
Military-Grade Materials
Durable, BPA-free ABS construction
0.1 Micron Hollow Fiber Membrane
Removes 99.9999% of bacteria & parasites
Medical-Grade Cotton Filter
Filters sediment & large particles
Activated Carbon Filter
Eliminates chlorine, odor & bad taste
Military-Grade Materials
Durable, BPA-free ABS construction
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Everything Included In Your 10x Bundle

Every ReadyLine Filter Straw comes with the complete hydration setup — nothing else to purchase.

A simple maintenance tool that keeps your filter running at full strength. Forces clean water back through the membrane to knock loose any trapped debris — takes seconds, and adds years to how long your straw stays effective.

Extends Filter Life

A soft-sided water pouch that folds down to almost nothing until you actually need it. Screw it onto the straw, fill from any nearby water source, and squeeze to filter as you go. Enough capacity for immediate hydration without weighing down your pack.

Packs Completely Flat

Lets you pull water from streams, puddles, or shallow containers without crouching over the source or getting your hands wet. Attaches straight to the straw so you can filter from a safer, easier position.

Reach Without the Risk

Secures the whole system to your pack, belt loop, or bug-out bag. Keeps your filtration gear within reach and ready to grab the moment you need it.

Always Within Reach

Clear, step-by-step instructions built so anyone in your household — no experience required — can have the system set up and running in under 60 seconds.

Ready In Under 60 Seconds

The core of the entire kit. A compact hollow-fiber membrane that turns almost any freshwater source into something safe to drink — no batteries, no chemicals, no fire required. Filters up to 400 gallons, with a 0.1-micron membrane fine enough to stop 99.999999% of bacteria and 99.999% of parasites before they ever reach your mouth.

Lifetime warranty
Total value: $59.99 You pay: $18.99
You save $16.00/straw + $20 in FREE accessories
  • "Didn't Expect to Use It This Soon"

    Our street lost water pressure for two days after a main broke last spring. We didn't even think about it until my husband remembered the ReadyLine Filtered Straw sitting in the garage. Filled bottles straight from the creek behind our house. Genuinely didn't expect to need it that fast.

    — Rachel B. from Columbus, OH

  • "The Kind of Prep You Forget About Until You Need It"

    Bought this after a bad storm season last year and honestly forgot it was in my bag. Then our well pump failed and we were stuck for three days. Pulled it out, filtered pond water for the whole family, no issues. Wish I'd bought two.

    — Daniel K. from Asheville, NC

  • "Every Car, Every Bag, One of These"

    We keep one in each vehicle now. Used it for the first time during a flash flood evacuation when we couldn't get to clean water for almost a full day. It worked exactly like it should. Cheap peace of mind for something this important.

    — Priya S. from Tempe, AZ

    The Main Threats That The ReadyLine Straw Filters

    7 threat categories neutralized

    Removes the cloudiness and visible debris that stand between you and genuinely clear water.

    • Cloudiness
    • Fine particles
    • Suspended solids
    • Murky water impurities
    Why it matters: Clear water isn't just nicer to drink — cloudy water often hides the pathogens you can't see.

    A wide range of biological risks, all caught by the straw's multi-stage filtration.

    • Worm eggs
    • Larvae
    • Nematodes
    • Bacterial clusters
    • Bio-contaminant fragments
    Why it matters: Outdoor water sources carry invisible biological risks no matter the season.

    Showing up more and more in lakes, rivers, streams — even treated tap water. The ReadyLine Filtered Straw stops all of it.

    • Particles
    • Fibers
    • Fragments
    • Beads
    • Filaments
    • Polymers > 0.1 microns
    Why it matters: Now found in over 80% of freshwater sources, and that number keeps climbing.

    Caught right at the surface of the filter fibers, before it ever reaches your water.

    • Algae
    • Biofilm
    • Plant matter
    • Decaying leaves
    • Natural debris
    Why it matters: Organic buildup compromises both how clean your water looks and how safe it actually is.

    Stopped cold by the 0.1-micron hollow-fiber membrane — these organisms simply can't fit through.

    • E. coli
    • Salmonella
    • Shigella
    • Campylobacter
    • Vibrio cholerae (cholera)
    • Fecal coliforms
    • Total coliforms
    • Aerobic bacteria clusters
    Why it matters: These bacteria are behind most serious waterborne illness cases around the world.

    Caught and neutralized based purely on size — nothing gets past the membrane's structure.

    • Giardia lamblia
    • Cryptosporidium parvum
    • Entamoeba histolytica
    • Cysts
    • Oocysts
    • Protozoan larvae
    Why it matters: A leading cause of extended stomach illness and serious dehydration when you're already in a tough spot.

    Filtered out mechanically — the membrane blocks anything larger than 0.1 microns, no exceptions.

    • Sand
    • Silt
    • Clay particles
    • Rust flakes
    • Soil residue
    Why it matters: You'll find this in nearly every untreated outdoor water source you come across.