A portable water filter straw kit with a 3L gravity bag that turns stream, lake, or tap water into clean drinking water. It’s built for hiking, camping, and emergencies.
Water Filter – Emergency Survival
- Removes bacteria and parasites like Giardia and Cryptosporidium.
- Several ways to use it: drink directly, squeeze, gravity-filter, or attach to a bottle.
- Lightweight and packable, so it’s easy to carry anywhere.
- Reusable for thousands of liters, cutting down on bottled water.
30-Day Money Back Guarantee
That's how confident we are in your results. But if you're not thrilled, send it back and we'll refund your purchase.
Its universal 28mm thread fits standard disposable bottles, saving me money and preventing illness from unsafe tap water while traveling.
Why It's a Must-Have
Why It's a Must-Have
Safe water anywhere
Drink from streams, lakes, or taps while hiking, camping, or traveling, without carrying heavy water bottles.
Emergency preparedness
It’s a must-have for go-bags and home kits in case of floods, power outages, or water supply disruptions.
Saves money
One filter replaces thousands of bottles of water.
Eco-friendly
It cuts down on single-use plastic bottles.
Versatile and easy
Use it as a straw, a squeeze filter, a gravity system, or a bottle attachment. No batteries, chemicals, or setup needed.
Trustpilot Reviews
The Ultimate Camp Setup!
"I bought this kit primarily for the gravity filtration setup, and the benefit to my camping experience has been massive. Because the 3L capacity gravity-fed water bag is so large, it saves me incredible amounts of time and physical energy at camp. I just fill it at the stream, hang it from a tree, and let gravity do the work. The flow rate is surprisingly fast, delivering over 19.4 fl oz per minute. The main benefit is that I no longer have to spend 20 minutes manually pumping water; I can finally relax, set up my tent, and have safe water ready for cooking instantly."
Unbeatable Value and Financial Savings
"I was blown away by the longevity of these filters, which has benefited my wallet immensely. Each filter is rated to process up to 6800 liters, or roughly 1800 gallons of water. Since this kit comes with two filters, that equates to replacing roughly 45,400 standard 350ml bottles of water. The financial benefit is undeniable—I've saved hundreds of dollars by not having to buy cases of bottled water for my emergency prep. It gives me immense peace of mind knowing my family is provided for without breaking the bank."
Saved My Knees and Back!
"What I love most about this water filter is the 1-meter (39-inch) extension tube. The biggest benefit for me as an older hiker is that it spares my knees and back. I no longer have to crouch down in the mud or awkwardly lean over steep, slippery riverbanks to get a drink. I can just drop the tube into the stream and drink comfortably while standing up or sitting on a rock. It keeps my clothes clean and makes staying hydrated on the trail completely effortless and pain-free."
Total Health Protection on the Trail
"Safety is my number one priority, and the direct benefit of this filter is that it has kept my stomach completely safe on long treks. The membrane microfilter removes 99.999999% of microscopic substances and 99.999% of parasites like Giardia and Cryptosporidium. I also love that it filters out 99.999% of microplastics. Knowing it is 3rd party tested gives me the ultimate benefit: zero anxiety. I can drink from questionable backcountry sources without the fear of severe illness ruining my trip."
Stress-Free Maintenance and High Flow
"This package comes with absolutely everything you need right out of the box, including two 30ml cleaning syringes. The real benefit here is how stress-free and reliable it makes the filter out in the wild. When dealing with heavy sediment, the flow can naturally slow down, but being able to easily backwash the filter with the syringe restores the regular lifespan and flow instantly. The benefit is that I never get frustrated trying to suck water through a clogged filter; it always works perfectly when I need it most."
Massive Space-Saver for Emergency Prep
"I added this purifier combination to our family's emergency survival kit, and the biggest benefit is the sheer amount of storage space it saves us in our home. Instead of hoarding massive, heavy cases of plastic water bottles, I just store these two compact 8.27-inch filters. Knowing one filter handles 1800 gallons means I have years of clean water in a tiny package. It benefits my peace of mind tremendously knowing we are prepared for any disaster without cluttering our entire garage."
Keeps My Gear Dry and Prevents Waste
"I've used other gravity bags in the past that leaked everywhere, but the leak-proof design interface on this system is rock solid. The main benefit is that it keeps the inside of my backpack and all my expensive sleeping gear completely dry! Furthermore, I greatly benefit from the multi-gear adjustment clip on the hose. It lets me control the exact flow rate, meaning I don't waste precious filtered water when washing my hands or filling a tiny cup. It maximizes every drop."
Lightened My Pack and Improved My Hikes
"If you want to shed weight from your backpack, this is the best purchase you can make. The direct benefit to me has been a significant reduction in back and shoulder pain during multi-day hikes. The filter is incredibly lightweight and compact. Instead of carrying heavy, sloshing 3-liter water reservoirs all day, I just carry this kit in its 13.38 by 9.45-inch storage bag. Because it's so easy to use on the go, I hike much faster and feel far less fatigued at the end of the day."
Saved Our Trip in Bad Conditions
"I benefited from this filter's incredible performance when our only camping water source turned out to be a murky pond. Even with heavy sediment, the water came out crystal clear. Without this filter, our trip would have been ruined, and we would have had to hike back to the car early. The instructions made it clear that backwashing after each use extends the lifespan, which kept the water flowing steadily all weekend. It literally saved our vacation!"
Made Group Chores a Breeze
"The 3-liter capacity of the blue gravity-fed water bag is a total game-changer for group camping. We hung it from a sturdy branch, and the biggest benefit was how it completely eliminated the chore of filtering water manually for four people. We had enough water on tap to cook dinner and make coffee without taking turns pumping. Since the kit includes two filters, we could process water twice as fast when needed, benefiting everyone by giving us more time to just sit by the fire."
Money-Back Guarantee
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 30 days for a full refund.
CLAIM NOWMoney-Back Guarantee
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 30 days for a full refund.
CLAIM NOWFAQs
It removes bacteria, parasites like Giardia and Cryptosporidium, sediment, and microplastics using a hollow-fiber membrane.
No. Like most straw filters, it doesn’t reliably remove viruses, heavy metals, chemicals, or salt. Don’t use it on seawater or polluted industrial water.
It’s rated for up to 5,000–6,800 liters, depending on water quality. Muddy water will shorten its life.
You can sip directly from the water source, screw it onto a standard bottle, squeeze water through it, or hang the 3L bag and let gravity do the work.
The filter may be clogged. Blow back through the straw, or backflush it with the included syringe, to clear it.
Backflush with clean water after each use. Let it dry fully, then store it between 1–45°C.
To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
Shipping usually takes 7 to 15 business days, depending on your location and local delivery conditions. Once your order has been processed, it will be carefully packed and shipped to the address provided at checkout.
We want you to feel confident with your purchase. If you are not satisfied with your order, you may contact us within 30 days of receiving your product to request a return or refund. Items must be unused, unopened, and in their original packaging unless there is an issue with the product.