PurxStrawi

Instant Clean Drinking Water Anywhere with PurxStrawi 1-Gallon Gravity Survival Water Filter

Purify freshwater rivers, lakes, and streams in minutes without manual pumping. Designed for off-grid hiking, emergency readiness, and backcountry camping, this high-performance 4-layer 0.1-micron filtration system guarantees pure hydration on every trail.

Filters 1 Gallon of Water in Just 5 Minutes
Removes 99.9999% of Bacteria & Heavy Impurities
Durable Food-Grade TPU Construction
Dual Mode: Gravity Bag or Filter Straw

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Essential Purification and Reliable Survival Hydration for Outdoor Adventurers

Advanced 0.1-Micron 4-Layer Filtration

Eliminate 99.9999% of harmful microscopic particles, bacteria, and debris. The premium hollow fiber membrane combined with activated coconut carbon removes odors and delivers fresh, crisp taste from any stream.

Effortless Hands-Free Gravity Flow System

Skip tedious hand pumping. Hang the durable reservoir from a tree branch and let natural gravity filter 1 full gallon of clean, safe drinking water in under 5 minutes for your entire campsite crew.

Rugged, Ultralight & Packable

Crafted with flexible food-grade TPU, the leakproof bag rolls up compactly into your backpack. It withstands tough trail conditions while taking up minimal space in emergency bug-out bags.

Over 25,000+ Backcountry Hikers & Survivalists Trust PurxStrawi

Rated 4.9/5 by 1,850+ Campers

PurxStrawi High-Capacity Gravity Water Filter Straw System – Complete Off-Grid Wilderness Kit

Equip your gear with rapid gravity-fed filtration. Converts muddy wilderness sources into pristine drinking water with zero pumping required. Perfect for hiking & prepping.

Rapid 1-Gallon Flow in Under 5 Minutes
4-Stage 0.1-Micron Hollow Fiber Purifier
BPA-Free Food-Grade TPU Reservoir Material
Versatile Straw and Gravity Bag Setup

$89.00

$178.00

Guaranteed Safe Checkout

"PurxStrawi offers unmatched reliability for outdoor enthusiasts. The high-capacity 0.1-micron filtration coupled with gravity speed ensures essential safe water without the physical strain of hand-pump filters."

David Miller, Research Specialist

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WHY CHOOSE US

Engineered for Peak Performance in Extreme Wilderness

Reliable Clean Hydration When It Matters Most

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0.1-Micron Absolute Pore

Blocks microscopic contaminants and sediment effectively, ensuring pristine, drinkable water directly from turbulent streams, lakes, or rainwater.

Fast Gravity-Fed Speed

Produces 1 gallon of clear drinking water in only 5 minutes without tiring your arms with continuous pumping on exhausting multi-day mountain hikes.

Food-Grade TPU

Extremely resilient, puncture-resistant, and 100% BPA-free reservoir bag holds up under intense outdoor expedition pressure.

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Dual-Purpose Flexibility

Drink directly from natural springs using the straw or hang the reservoir for convenient high-volume camp water filtration with your group.

Ultra-Compact & Packable

Rolls up tightly into the included carry pouch, saving vital pack volume and weight for serious backpackers and survivalists.

Disaster Preparedness

A crucial safeguard during emergency storm blackouts, tap water contamination alerts, or unexpected off-grid survival scenarios anywhere.

PRODUCT SHOW

WHAT'S IN THE SURVIVAL BOX

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1x Gravity Water Bag

1x Water Filter Straw

1x Extension Hose with Clip

1x Carrying Strap

1x Storage Pouch

24/7 CUSTOMER CARE

Have questions about using or maintaining your PurxStrawi? Our dedicated outdoor support team is ready around the clock to assist with setup tips, warranty support, and order details.

FREQUENT QUESTIONS

All You Need To Know Here

How does the gravity system work?

Simply fill the 1-gallon reservoir bag with source water, hang it from a branch, and let gravity push water through the 4-layer filter straw via the hose.

How long does filter straw last?

The hollow fiber membrane can purify thousands of gallons of water when properly backwashed and maintained using clean water after outdoor excursions.

Can I drink directly with straw?

Yes! You can detach the water filter straw from the hose and drink directly from streams, rivers, or standard wide-mouth hydration bottles.

Does it remove bad odor?

Yes, the advanced coconut shell activated carbon core actively eliminates unpleasant river odors and poor taste, delivering crisp, refreshing drinking water anywhere.

Is the TPU material safe?

Absolutely. The reservoir is manufactured from premium food-grade TPU that is 100% BPA-free, odorless, durable, and completely safe for storing potable water.

How do I clean the reservoir?

Rinse the reservoir bag with clean water and mild soap, then allow it to air-dry completely before folding it away for storage.

Is it good for home emergencies?

Yes, it is an essential piece of equipment for survival kits, hurricanes, freeze blackouts, or municipal boil-water emergency advisories.

What is included with my purchase?

You receive 1x 1-gallon gravity reservoir bag, 1x water filter straw, 1x extension hose with shutoff clip, 1x hanging tree strap, and 1x compact travel storage pouch.

CUSTOMER REVIEWS

Trusted by Hikers & Preppers Nationwide

Mark Stevens

Took this on a 4-day Appalachian trail hike. Filtering a full gallon in 5 minutes without tiring my hands with a pump was a complete game changer for our whole camp.

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Sarah Jenkins

Water from the creek tasted crystal clear and completely odorless. The food-grade bag is tough, doesn't leak at all, and packs down small in my bug-out bag.

Verified Buyer

Travis Cole

Exceptional survival piece. We used it during a weekend campout and filtered 5 gallons seamlessly. Super easy setup and the fast flow rate through the straw is truly impressive.

Verified Buyer

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