0.1-Micron Filter Straw
The core of the system. Its hollow-fiber membrane is designed to reduce bacteria, parasites, protozoa and microplastics from freshwater.
Essential crisis skills and self-reliance made simple.
Simple checklists to organize food, supplies and storage.
Practical checklists for emergency preparedness.
The One Thing Standing Between Your Family and Survival
You can last three weeks without food. Without clean water, you have about three days.
When disaster hits — a hurricane, a grid failure, a contaminated municipal supply — bottled water vanishes from shelves within hours. Stores empty. People fight over the last case. While everyone else is scrambling, the question is simple: what's your plan?
When Everything Else Fails, This Works
The GUARD-S1 turns almost any freshwater source — streams, ponds, lakes, even collected rainwater — into clean, drinkable water. No power. No batteries. No chemicals. [Hang it and let gravity do the work. / Sip straight from the source or screw it onto a bottle.]
While other families ration their last few bottles, you'll have a steady supply of safe water on demand.
Filtration Built for the Worst Case
Our 0.1-micron hollow-fiber membrane removes:
This isn't a camping gadget. It's hollow-fiber filtration in the same class relied on by emergency responders and the outdoor survival community.
Small Enough to Forget, There When It Counts
The GUARD-S1 packs down small enough to live in your bug-out bag year-round — no shelf life, no expiration date, and up to 400 gallons of clean water over its lifespan. Drop one in your emergency kit, your glovebox, every go-bag in the house.
Because the worst time to find out you're unprepared is when the crisis is already here.
Don't wait until it's too late. The time to prepare is now — while you still can.
Orders are processed within 1-3 business days. Delivery times vary by destination. Tracking information will be provided after shipment.
CLEAN WATER. GREATER PEACE OF MIND.
You can last weeks without food. Without clean water, you have only days. GUARD-S1 gives you a compact, power-free way to filter freshwater when everyday water access is disrupted.
WHEN EVERYTHING ELSE FAILS
A storm, a grid failure or a disruption to your local water supply can make clean drinking water harder to access. GUARD-S1 is designed to help you prepare before that moment arrives.
Keep it in your emergency kit, vehicle or outdoor pack. No outlet, charging cable or batteries are needed to operate the filter.
BUILT FOR THE UNEXPECTED
A compact, power-free filtration system designed to help you access cleaner freshwater during outdoor trips and unexpected disruptions.
*Use only as directed. Performance depends on source-water quality and proper maintenance. This filter is not intended to remove dissolved chemicals, fuel, heavy metals or salt.
THE COMPLETE KIT
The GUARD-S1 system brings the essential tools together in one compact kit, ready to pack in your emergency bag, vehicle or outdoor gear.
The core of the system. Its hollow-fiber membrane is designed to reduce bacteria, parasites, protozoa and microplastics from freshwater.
Flushes trapped sediment from the filter core to help restore flow when it slows. Follow the included cleaning instructions.
Helps draw water from shallow or hard-to-reach spots and gives you more flexibility when collecting water.
Collect freshwater, attach the filter and squeeze water through the system into a bottle or container.
A visual guide to setup, drinking methods and filter care, so you can learn the process before you need it.
Attach the kit to a backpack, belt loop or emergency bag and keep it easy to find when heading out.
HOW IT WORKS
No electricity. No batteries. No complicated setup.
Fill the pouch with freshwater from a stream, lake, pond or collected rainwater.
Attach the filter to the pouch or a compatible bottle. Check that connections are secure.
Sip through the straw or gently squeeze the pouch to push water through the filter membrane.
Collect the filtered water in a clean container and follow all product instructions.
READY WHEN YOU NEED IT
Lightweight and compact, GUARD-S1 is designed to travel with you on hikes, camping trips and emergency-preparedness outings.
MADE FOR REAL-WORLD USE
At the campsite, on the trail or in your emergency kit, take a practical water-filtration option wherever you go.
FAQ
Important information to help you use and care for your GUARD-S1 filter.
Drink through the filter straw from a freshwater source, or fill the included pouch, attach the filter and squeeze water through the 0.1-micron hollow-fiber membrane. Follow the included instructions for each method.
The hollow-fiber membrane is designed to reduce waterborne bacteria, protozoa and parasites, microplastics and sediment. Refer to the current laboratory test report for the exact organisms tested and reduction rates. It is not designed to remove dissolved chemicals, fuel, heavy metals or salt.
Use natural freshwater such as streams, rivers, lakes, ponds and collected rainwater. Avoid saltwater and any water suspected of chemical or industrial contamination. Choose the clearest available source to help extend filter life.
No. The GUARD-S1 uses suction or manual squeezing and does not require electricity, batteries or chemical tablets.
The stated capacity is up to 400 gallons. Actual service life depends on source-water quality and maintenance. Backflush the filter as directed when flow slows.
Use the included syringe to backflush the filter according to the product instructions. Allow the filter to dry completely before long-term storage when instructed by the manufacturer.
Do not allow a wet hollow-fiber filter to freeze. Ice can damage the membrane. Dry it fully before storing it in locations that may reach freezing temperatures.
The six-piece kit includes the filter straw, collapsible squeeze pouch, flexible extension hose, backwash syringe, carabiner clip and illustrated instructions.
DELIVERY INFORMATION

Prepare your water plan now. Keep your GUARD-S1 system accessible, learn how to use it and follow the included care instructions.