Pura-GS1 Pura-GS1 Pura-GS1 Pura-GS1 Pura-GS1 Pura-GS1 Pura-GS1
Pura-GS1
Pura-GS1
Pura-GS1
Pura-GS1
Pura-GS1
Pura-GS1
Pura-GS1
#1
BESTSELLER
First Ever Gravity-Fed Emergency Water Filtration System
Rated 4.8 (15,480+ Reviews)
Satisfied Clients

PURA-G1 Survival Kit

  • Works when the power grid fails
  • Provides up to 1,500 gallons of clean water
  • Removes 99.99% of contaminants
FREE Shipping USA
90-Day Guarantee
90-Day Guarantee +

We offer a 90-day money-back guarantee.

If the Pura-G1 isn't right for your family, just reach out to our support team within 90 days of delivery and we'll help you with a refund under our guarantee. Test it, run water through it, and know it works long before you ever need it.

How It Works +

Fill it. Hang it. Walk away.

Scoop water from any freshwater source — a creek, pond, lake, river, or collected rainwater — and pour it into the one-gallon dirty-water bag. Hang the bag from a branch, hook, fence post, or anything elevated.

Gravity pulls the water down through a four-stage filter and into the clean pouch below. No pumping. No squeezing. No batteries. No power. You don't stand over it. You don't operate it. You set it up and come back to a full gallon of clean water while you handle everything else.

When the flow starts to slow, use the included syringe to backflush the filter — that clears the buildup and restores the flow so it's ready for the next fill.

One bag. One hang. One gallon at a time. As long as there's freshwater nearby, your family has water.

Shipping & Returns +

We offer tracked shipping on all orders.

All orders are process by our careful fulfillment team within 24 business hours.

Delivery times range from 5-10 business days depending on your location.

We've made returns super easy for you. Simply contact us at support@aleria.com and we'll handle everything.

Lab-Tested Filtration +

Built to handle the water you'd actually have to drink.

The Pura-G1 runs water through a 0.1-micron hollow-fiber membrane — pores so small that harmful organisms physically cannot pass through. What comes out the other side is clean.

Our filtration is tested to remove:

  • 99.99% of waterborne bacteria
  • 99.99% of parasites & protozoa
  • 99.99% of microplastics

That's the same class of hollow-fiber technology trusted by emergency responders and used in field operations where there is no grid, no infrastructure, and no resupply.

The Pura-G1 is designed for freshwater sources only — not for saltwater, chemical runoff, or fuel contamination. Be smart about your source, and the filter handles the rest.

Money Back Guarantee

90-Day Money Back Guarantee

If you’re not satisfied with your purchase, contact us within 90 days and we’ll help you with a refund under our guarantee.

See it in action

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Pura-GS1
Rated 4.8/5 | 15,480 reviews

Pura-GS1

Get It By Sunday, October 4
Get It By Sunday, October 4
What's Inside The PURA-G1

What's Inside The PURA-G1

1. One-Gallon Gravity Bag

Durable, collapsible bag that holds a full gallon of unfiltered water. Fill it from any freshwater source — creek, pond, lake, river, or collected rainwater — and hang it up. Gravity pushes the water down through the filter. No pumping. No squeezing. You fill it and walk away.

2. Four-Stage Filter Core

The engine of the system. Cotton pre-filter catches sediment. Activated carbon strips taste and odor. The 0.1-micron hollow-fiber membrane blocks bacteria and parasites — the pores are physically smaller than the organisms. Final polish stage before clean water exits. Rated for up to 1,500 gallons over its life.

3. Hose + Clean-Water Pouch

The hose routes filtered water from the bag into the collection pouch below. No contact with the dirty source. What goes in brown comes out clear — ready to pour, drink, cook with, or hand to your kids.

4. Backflush Syringe

When flow slows over time, reverse-flush the filter with the included syringe. It clears the buildup and restores performance — so the system keeps working long after a disposable filter would've been thrown out.

5. Hang Loop + Carabiner

Clip it to a branch, a fence, a hook, a door frame — anywhere above your collection point. The whole system packs flat and weighs six ounces empty. Stores in a drawer, a vehicle, or a kit until the day you need it.

LAB-TESTED FILTRATION
UP TO 1,500 GALLONS
FREE U.S. SHIPPING
LAB-TESTED FILTRATION
UP TO 1,500 GALLONS
FREE U.S. SHIPPING
LAB-TESTED FILTRATION
UP TO 1,500 GALLONS
FREE U.S. SHIPPING
LAB-TESTED FILTRATION
UP TO 1,500 GALLONS
FREE U.S. SHIPPING
Rated 4.8 /5 based on 15,480 +rating reviews

Helping Guide Your Water Plan That Doesn't Need the Grid

Review by Mike T
Mike T, Verified Buyer
Bought this for our emergency kit after the storms last year knocked our power out for three days. We got lucky that time — water came back before we ran out of bottles. Didn't want to rely on luck twice. Took the Pura-G1 down to the creek behind our property just to test it. Filled the bag with water I wouldn't let my dog near, hung it off the fence, and what came through was completely clear. No smell. No taste. Just water. My wife tried it herself the next day without telling me. She said she needed to know she could run it if I wasn't home. Now we keep one in the house and one in the truck. Hopefully never need it. But it's there.
Review by Sarah K
Sarah K, Verified Buyer
I'll be honest — I almost didn't buy this. I figured our cases of bottled water in the garage were enough. Then I actually did the math. Four people, a gallon a day each, and those cases are gone in less than a week. This thing does up to 1,500 gallons from any creek or pond. That's not even a comparison. Set it up in the backyard off a tree branch to try it out. Took maybe two minutes. Gravity does all the work — no pumping, no squeezing, nothing. I used to think the straw filters were fine but honestly after seeing this fill a whole pouch hands-free, I don't know why anyone would stand at a creek sipping through a tube when you could just hang this and walk away.
Review by Dan K
Dan K, Verified Buyer
Took this on a Scout trip with my son's troop. Twelve boys, three dads, and we filtered enough water for the whole group in about twenty minutes from a stream that looked like chocolate milk. The kids thought it was the coolest thing they'd ever seen — dirty water goes in the top, clean water comes out the bottom. No batteries, no fuss. One of the other dads ordered three the night we got home. It packs flat, weighs almost nothing, and the build quality is solid. Only thing I'd mention is give the hose a good connection when you set it up — once it's seated it works perfect. Already planning to grab a couple more for the cars.
Review by Linda S
Linda S, Verified Buyer
My son sent me this for my birthday and I thought he'd lost his mind. I'm 63 years old, I'm not going camping. Then he explained it's not about camping — it's about what happens when the faucet stops working. After what happened in Texas and all the hurricane stuff on the news, that hit different. I tested it with rainwater from the barrel out back. Brown, leaves in it, the whole mess. What came through was clear as tap water. I could set it up myself in about a minute, which matters because I live alone. No pumping, no strength required, you just hang it and gravity does the job. I bought two more — one for my daughter's family and one for my neighbor who's 71 and on a well that needs electricity to run. If the power goes out, her pump goes with it. Now she's got a backup that doesn't need a thing.

Frequently Asked Questions

Everything You Need To Know.

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.
The micron hollow-fiber membrane is built to remove waterborne bacteria, protozoa, and parasites, microplastics, and sediment. 99.9% based on lab testing. It's designed for natural freshwater sources, not salt water or water contaminated with chemicals, fuel, or heavy metals.
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.
None of the above. The PURA-G1 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.
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 back-flashing after use keeps it flowing at best.
When the flow slows, back-flush the filter with clean water to clear trapped particles. Let the filter fully air-dry before long term storage. That's the whole routing, no replacement needed between uses.
Store it clean and dry in your kit, vehicle, or bug-out bag. One important note: never let the filter freeze while wet, ice can damages the hollow-fiber membrane. Dry it completely before storing it anywhere it might freeze.
The 1-gallon gravity reservoir with hanging strap, the inline filter, the connecting tube, and instructions are included in each order.