Emergency Gravity Water Filtration System

Emergency Gravity Water Filtration System

⚡ No Power Needed

💧 Gravity Filtration

🔬 0.1-Micron Filter

🎒 Compact & Portable

£54.00
£54.00 £77.00
SAVE 29% Sold out
Emergency Gravity Water Filtration System

Emergency Gravity Water Filtration System

£54.00
£54.00 £77.00
SAVE 29% Sold out
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  • A filter that works when everything else fails. AND a lifetime warranty? Easy decision. I ordered six — one for every family member’s emergency bag, plus a couple for the house and both cars. It’s something you hope never to need, but knowing we can safely drink from any water source in a disaster lets me sleep at night.

    James Whitmore

  • We go hiking and camping with the kids all the time, and drinking water was always the one thing I quietly worried about. Since we’ve had the AQUA-GS1, that worry is completely gone. We used it in the Lake District from a mountain stream in Snowdonia, and even from a rain barrel just to test it — zero issues, no weird taste. Honestly one of the best things I’ve ever bought for our family.

    Charlotte Ashford

  • I was sceptical at first because I’ve tried a few filters that either take forever to run through or clog up after a couple of uses. This one is in a different league. Build quality is top-notch, the gravity flow is surprisingly quick, and the water just tastes neutral — the way water is supposed to taste. I’ve already reordered two more for my brother and my parents. Highly recommend.

    Oliver Fairbanks

    No electricity required

    No battery charging

    Gravity-powered filtration

    Compact emergency backup

    Suitable for home & outdoor use

    Power outages

    Storm preparation

    Camping

    Hiking

    Vehicle emergency kits

    Emergency preparedness bags

    View full details
      EXPLORE THE SYSTEM

      What's Inside

      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.
      1 GAL CAPACITY
      6 oz WEIGHT EMPTY
      BPA-Free MATERIAL
      Collapsible PACKS FLAT

      How to Use

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        1. Fill the Water Bag

        Fill the 1-gallon reservoir with suitable freshwater from a stream, river, lake, pond, or collected rainwater.

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        2. Hang the Bag

        Use the built-in strap to hang the bag from a tree branch, hook, or other elevated point.

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        3. Let Gravity Filter the Water

        Open the water flow and let gravity pull the water through the filter — no pumping or electricity needed.

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        4. Collect the Filtered Water

        Let the filtered water flow through the outlet tube into a clean bottle, pouch, or container.

        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.