2,847 Reviews
Filters Up To 1,056 Gallons Of Water
Filters Bacteria, Sediment + Bad Taste
Filters Without Power Or Chemicals
When Safe Water Isn’t Guaranteed, You Need A Way To Filter Your Own.
In an emergency, bottled water can disappear fast. Stores run out, roads close, and relying on someone else for clean water becomes risky.
IronPrep WaterStraw lets you filter freshwater from rivers, lakes, and streams — so you have a clean water backup wherever you pack it.
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10% off · OUTAGE READY
20% off · FAMILY COVERED
30-day guarantee · Free shipping
Product Description
IronPrep WaterStraw Portable Water Filter
When safe water isn’t guaranteed, you need a way to filter your own.
Bottled water can run out, stores can empty, and roads can close.
IronPrep WaterStraw gives you a portable way to filter freshwater from rivers, lakes, and streams without power, batteries, or chemicals.
Compact, lightweight, and easy to pack, it’s built for emergency kits, camping, hiking, travel, cars, bug-out bags, and home preparedness.
There’s A Reason Preppers Keep One Packed
Filters Up To 1,056 Gallons
Long-lasting backup water filtration.
Filters Bacteria, Sediment + Bad Taste
Designed to help filter bacteria, sediment, cloudiness, and unpleasant taste.
UF Membrane + Carbon Filtration
Hollow-fiber UF membrane plus activated carbon technology.
Works Without Power Or Chemicals
No charging, batteries, electricity, or tablets needed.
Drink From Freshwater Sources
Made for streams, rivers, lakes, and other freshwater sources.
Lightweight + Portable
Everything stays packed together so you can grab it when time matters.
How To Use
Use IronPrep 3 simple ways depending on your situation.
Drink From Freshwater Sources
Place the straw into a river, lake, or stream and drink slowly as the water filters through.
Connect To A Bottle
Attach it to compatible 28mm bottles to drink or squeeze filtered water into a cup.
Use With A Water Bag
Connect it to a compatible water bag so you can filter and collect more water when needed.
Clear It After Use
After drinking, blow through the straw to clear leftover water and help prevent clogging.
Technical Specs
Filtration Technology
Hollow-fiber UF membrane + activated carbon
Filter Lifespan
4,000 L / approx. 1,056 gallons
Flow Rate
300 ml/min / approx. 10 oz/min
Shelf Life
5 years unused
60g / approx. 2.1 oz
60g / approx. 2.1 oz
Material
41°F–100°F / 5°C–38°C
Operating Temperature
41°F–100°F / 5°C–38°C
Best Used With
Streams, rivers, lakes, bottles, and compatible water bags
Important Note
Designed for freshwater use. Not intended for saltwater.
Shipping & Guarantee
Shipping: Orders are fulfilled within 24 hours on weekdays from our temperature-controlled facility and typically arrive in 2–7 business days. We offer free shipping on all orders
Tracking information will be sent via email as soon as your order ships
Guarantee: We proudly offer a 30-day money-back guarantee, so you can try our MREs with complete confidence.
This guarantee covers one case per customer.
One Small Straw.
Up To 1,056 Gallons Of Filtered Water.
Long-Lasting Filtration
Filters freshwater from rivers, lakes, and streams when bottled water isn’t enough.
Bacteria + Sediment Filtration
Designed to help filter bacteria, sediment, cloudiness, and freshwater contaminants.
Improves Taste + Odor
Activated carbon helps reduce chlorine, bad taste, and odors.
No Power Needed
No batteries, charging, electricity, or outlets required.
Lightweight + Portable
Weighs only 60g, easy to keep in your bag, car, pocket, or survival kit.
5-Year Shelf Life
Store it before you need it, so your water backup is ready when it matters.
When Bottled Water Runs Out, You Need Another Way
IronPrep helps you filter freshwater when stores, roads, and stored water can’t be relied on.
Stores Can Empty Fast
Bottled water is one of the first things people buy in an emergency.
Roads Can Close
If you can’t get to the store, you’re left with what you already have.
Stored Water Takes Space
Bottled water is one of the first things people buy in an emergency.
Freshwater Becomes Your Backup
Filter from rivers, lakes, and streams when bottled water isn’t enough.
How IronPrep Filters
Freshwater Into Cleaner Drinking Water
Two filters. No power. No chemicals.
Lightweight + Portable
Drink directly from rivers, lakes, streams, bottles, or compatible water bags.
UF Membrane Filtration
Helps filter bacteria, sediment, cloudiness, and protozoa like Giardia.
Activated Carbon Layer
Helps reduce chlorine, bad taste, and odors.
Filter As You Drink
No batteries, electricity, tablets, mixing, or waiting around.
Filter Water 3 Ways, Wherever You Pack It
Drink directly from freshwater, connect a bottle, or use a water bag when clean water isn’t guaranteed.
01
Drink Directly From Freshwater
Place the straw into a river, lake, or stream, then drink slowly as the water filters through.
02
Connect To A Bottle
Attach it to compatible 28mm bottles to drink or squeeze filtered water into a cup.
03
Use With A Water Bag
Connect it to a compatible water bag so you can filter and collect more water when needed.
04
Clear It After Use
Blow through the straw after drinking to clear leftover water and help prevent clogging.
Why IronPrep Belongs In Your Emergency Kit
IronPrep vs. Bottled Water & Purification Tablets
Bottled water runs out. Tablets take time. IronPrep keeps filtering.
Feature
Filters up to
1,056 gallons
Works without
stores
No waiting
required
No chemicals
needed
Lightweight
to pack
Filters freshwater
sources
Good for long
emergencies
Feature
Bottled Water
Purification Tablets
Limited supply
Made For The Moments Water Isn’t Easy To Carry
A small filter you can keep ready anywhere freshwater may become your backup.
1
Emergency Kits
For storms, outages, shortages, and moments when stored water runs low.
2
Bug-Out Bags
Adds serious water backup without adding bulky cases of water.
3
Camping + Hiking
Filter from rivers, lakes, and streams when carrying extra water isn’t practical.
4
Car Kits
Keep one ready if you’re stranded, delayed, or away from clean water.
5
Home Preparedness
A long-life backup that stays packed until you need it.
Got Questions?
We’ve Got Answers.
What does IronPrep WaterStraw filter?
IronPrep is designed to help filter bacteria, sediment, cloudiness, and protozoa like Giardia from freshwater sources. The activated carbon also helps reduce chlorine, bad taste, and odors.
Can I drink directly from rivers, lakes, and streams?
Yes. IronPrep is made for freshwater sources like rivers, lakes, and streams. Just place the straw into the water and drink slowly.
Does it need power, batteries, or chemicals?
No. IronPrep works without electricity, batteries, charging, or chemical tablets.
How long does the filter last?
Each IronPrep WaterStraw filters up to 4,000 L, which is approximately 1,056 gallons of water.
Does it filter saltwater?
No. IronPrep is designed for freshwater only. It does not turn saltwater into drinking water.
Can I use it with bottles or water bags?
Yes. You can drink directly from freshwater sources, connect it to compatible bottles, or use it with compatible water bags.
Where should I keep it?
Keep one in your emergency kit, car, bug-out bag, camping gear, hiking pack, or home preparedness setup.
How do I keep it flowing properly?
After use, blow through the straw to clear leftover water. If the flow feels restricted, blow firmly through the straw before drinking again.
Does it come with a guarantee?
Yes. IronPrep WaterStraw comes with a 30-day money-back guarantee, so you can add it to your kit risk-free.
30-day guarantee · Free shipping