
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
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
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
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
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
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
Included syringe backflushes the filter core to clear trapped sediment. A quick 30-second flush extends filter life dramatically.
Hang Loop w/ Carabiner
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 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.