THERMAL-PRO Emergency Bivy
THERMAL-PRO Emergency Bivy
The AQUA-GS1 uses a power-free, lab-tested, 4-stage micro-filtration system to turn rivers, lakes, and rainwater into safe drinking water for your family instantly.
Works when the power grid fails
Removes 99.99% of contaminants
Never expires, backed for life
Provides up to 1,500 gallons of clean water
Scientifically developed & lab-tested
Ultra-light & portable
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THERMAL-PRO Emergency Bivy
Product Description
Product Description
The One Thing Standing Between Your Family and Survival
The human body can survive 3 weeks without food. But without water? Just 3 days.
When disaster strikes — hurricanes, power-grid failures, contaminated municipal water — bottled water sells out in hours. Stores empty. Neighbors fight over the last case. And while everyone else scrambles in desperation, what will you do?
When Everything Fails, This Works
The AQUA-GS1 turns almost any freshwater source — streams, ponds, lakes, even rainwater — into clean, drinkable water. No power. No batteries. No chemicals. Just hang it, and gravity does the rest.
While other families ration their last few bottles, you'll have a steady, hands-free supply of clean water — set it up, walk away, and come back to a full gallon.
Filtration Built for the Worst-Case Scenario
Our 0.1-micron hollow-fiber membrane removes:
- 99.99% of waterborne bacteria
- 99.99% of parasites & protozoa
- 99.99% of microplastics
This isn't a camping gadget. It's the same filtration technology trusted by emergency responders and outdoor survival communities worldwide.
One Gallon, Hands-Free, Ready When It Matters
Hang the AQUA-GS1 from a tree, a hook, or your pack and let it work while you handle everything else. The lightweight filter packs down small enough to live in your bug-out bag year-round — no shelf life, no expiration, filters up to 1,500 gallons over its lifespan.
Perfect for emergency kits, vehicle stashes, bug-out bags, and off-grid adventures — because the worst time to discover you're unprepared is when you're already in crisis.
Don't wait until it's too late. The time to prepare is now — while you still can.
Shipping Details
Shipping Details
Here is how our shipping process works.
- Processing Time: 1-3 days
- Cost: 100% FREE! Once shipped, you will receive a tracking number for your order so you know where it is at all times.
- Estimated Delivery: Most orders arrive 5-7 business days after being handed off to the carrier.
A Life Saving Filtration System In Your Backpack
Everything you need for up to 1500 gallons of filtered water. Ready for when you need it most.
What's Inside the AQUA-GS1
Click any component to learn more
1-Gallon Gravity Bag
WATER COLLECTION & STORAGE
Durable, collapsible bag holds a full gallon of unfiltered water. Fill from any freshwater source and hang it up — gravity pushes water through the filter. No pumping required.
0.1-Micron Filter Core
THE HEART OF THE SYSTEM
Compact cartridge with a 0.1-micron hollow-fiber membrane. Removes 99.99% of bacteria, parasites, protozoa, and microplastics across four filtration stages. Lab-tested, military-grade.
Flexible Hose w/ Drainage Valve
WATER TRANSFER
Food-grade flexible hose connects the filter to your container. The built-in drainage valve gives you full flow control — fill bottles, hydration packs, or pots with purified water.
Clean-Water Collection Pouch
FILTERED WATER STORAGE
Collapsible 1-gallon pouch catches and stores your freshly filtered water. Perfect for collecting clean water at camp. Rolls up flat when empty.
Direct-Sip Mouthpiece
HANDS-FREE HYDRATION
Attach to the hose for hands-free drinking directly from the gravity system. Bite-valve design prevents leaks and stays hygienic when not in use.
Backwash Syringe Setup
FILTER MAINTENANCE
Included syringe backflushes the filter core to clear trapped sediment. A quick 30-second flush extends filter life dramatically.
Hang Loop w/ Carabiner
HANDS-FREE SETUP
Heavy-duty nylon strap and carabiner clip let you hang the full gravity bag from tree branches, hooks, door frames, or vehicle racks. Reinforced to hold a full gallon.
How It Works
Fill From Any Source
Dip the 1-gallon reservoir into any freshwater source — a stream, lake, pond, or even collected rainwater. You don't need to find clean water first. That's the filter's job.
Hang It Up
Use the built-in strap to hang the reservoir from a tree branch, a hook, or your pack. Get it above where you'll be drinking from, so gravity has room to work.
Let Gravity Do the Work
Gravity pulls the water down through the 0.1-micron hollow-fiber filter — no pumping, no batteries, no waiting. Bacteria, parasites, and microplastics stay behind.
Drink Clean Water
Clean water flows out the tube, ready to drink straight or to fill your bottles and containers. Set it up once and let it run hands-free while you handle everything else.
EVERYTHING YOU NEED TO KNOW
Frequently Asked Questions
How does the AQUA-GS1 work?
It's a gravity-fed system — nothing to charge, pump, or power. Fill the 1-gallon reservoir from a freshwater source, hang it from a branch, hook, or your pack, and gravity pulls the water down through the inline filter and out the tube as clean drinking water. Hang it and walk away while it works.
What does it filter out of the water?
The 0.1-micron hollow-fiber membrane is built to remove waterborne bacteria, protozoa and parasites, microplastics, and sediment — to 99.99% based on lab testing. It's designed for natural freshwater sources, not saltwater or water contaminated with chemicals, fuel, or heavy metals.
What water sources can I use it with?
Streams, rivers, lakes, ponds, and collected rainwater are all fair game. For the clearest results and longest filter life, fill from the cleanest water available and avoid heavy mud or silt. Steer clear of saltwater and any water you suspect contains chemicals or industrial runoff.
Does it need power, batteries, or chemicals?
None of the above. The AQUA-GS1 runs entirely on gravity — no electricity, no batteries, no chemical tablets, and no waiting for anything to dissolve. That's exactly what makes it reliable when the grid is down.
How long does the filter last?
Up to 1500 gallons of clean water over the life of the filter, depending on water quality and regular maintenance. Dirtier source water and skipped cleanings will shorten that, so backflushing after use keeps it flowing at its best.
How do I clean and maintain it?
When the flow slows, backflush the filter with clean water to clear trapped particles. Let the filter fully air-dry before long-term storage. That's the whole routine — no replacement parts needed between uses.
How do I store it — and can it freeze?
Store it clean and dry in your kit, vehicle, or bug-out bag. One important note: never let the filter freeze while it's wet — ice can damage the hollow-fiber membrane. Dry it completely before storing it anywhere it might freeze.
What's included in the box?
The 1-gallon gravity reservoir with hanging strap, the inline filter, the connecting tube, and instructions are included in each order.
What about shipping, returns, and warranty?
Processing time is one to two days, and you should allow five days for delivery. Questions? Reach us anytime at support@guardsurvival.com.
A little slow but works well enough. Haven't had any ill effects from Colorado river water so it worked.
2 June 2026Really glad I bought this for my emergency kit.
1 June 2026Great product works just as described I will definitely be buying more filters and continue to use this system.
26 May 2026Needed an intermediate solution for clean water. The straws are great for short term but this is expected for longer excursions. Good quality material […]
21 May 2026Love the simplicity. The tubing gets kinda twisted as you screw on lids. The clean bag would be nice if it poured but the connection seems like a one […]
18 May 2026Get for backpacking with Scouts. It took about 10 minutes to filter about 6 liters or 6 Nalgene Bottles. I would recommend a ball valve to screw the f […]
11 May 2026Great system to have in your bugout gear. Water in necessary for survival and this will get you by.
11 May 2026I prefer and love gravity filters because its simply faster than the sucking ones you put on your water bottle, and i can share water with my friends. […]
7 May 2026I haven't used it yet, but it looks well-made.
5 May 2026High quality system! You need one for backup fresh water in an emergency.
4 May 2026Worked perfectly, no one is sick. I never realized how tasty filtered mountain water could be.
4 May 2026This arrived quickly and appears to be very compact and efficient, though I'm saving it for emergencies, since my well water is good and deep. This is […]
3 May 2026I haven't used it yet, but I think its just what I wanted.
1 May 2026It was what I expected it to be. I had bought an older version and hopefully this one is as good once we use it this summer for camping.
1 May 2026Loved this water bag!! Took it to Havasupai in 112 degree heat…yes, they have a water source but i filter for my own comfort - we filled the water b […]
28 April 2026Exactly what I need!
28 April 2026I don't know if that could be just me because it takes me back 60 years when I was a little kid and drank from hose that hung wrapped up on the outdoo […]
28 April 2026Great package for survival.
25 April 2026Replaces my homemade one from back before they were a thing and does a fantastic job of it.
19 April 2026