PurxStrawi

PurxStrawi: Instant Clean Drinking Water Anywhere with Advanced 0.1-Micron Gravity Filter

Turn turbid stream water into pure, safe hydration in minutes. Built with food-grade TPU and 4-layer ultrafiltration, PurxStrawi removes 99.9999% of contaminants without pumps or electricity. Ideal for wild camping, hiking, and emergency prepping kits.

0.1-Micron 4-Layer Ultrafiltration Membrane
Filters 1 Gallon in 5 Minutes Without Pumping
Durable Leakproof Food-Grade TPU Bag
Direct Straw Sip or Gravity Bag Flow

-50%

Special 50% Off Limited-Time Sale

Save 50% OFF Now

AS SEEN ON

Effortless Outdoor Hydration: Safe, Pure Water From Any Stream, River, or Lake

Hospital-Grade 0.1-Micron Membrane

Advanced hollow-fibre and coconut carbon layers eradicate 99.9999% of impurities, sediment, bad odours, and harsh tastes, delivering clean, crisp water wherever your backcountry trekking takes you.

High-Speed Gravity Flow System

Purifies a full gallon of freshwater in just five minutes with zero pumping required. Hang it effortlessly from a tree branch to supply the entire campsite with fresh drinking water effortlessly.

Rugged & Compact Packability

Crafted from durable food-grade TPU that withstands heavy wilderness use yet folds flat to slip into your rucksack easily. Lightweight, reliable, and ready for extreme survival conditions.

Over 15,000+ British hikers and preppers trust PurxStrawi daily.

4.9/5 Rating by 2,400+ Campers

Experience Total Hydration Freedom: The Ultimate Portable Gravity Water Purification System

Engineered for rugged adventures and critical emergencies. The PurxStrawi gives you endless access to purified water straight from nature without tedious pumping.

99.9999% Proven Contaminant Removal
1-Gallon High-Capacity Reservoir Bag
Dual Mode: Direct Drinking & Gravity Kit
100% BPA-Free Food-Grade TPU Design

£64.00

£128.00

Guaranteed Safe Checkout

“PurxStrawi offers superb filtration reliability in harsh backcountry conditions. Its gravity design easily produces clean water in minutes without exhausting manual pumping, making it an essential survival kit.”

Dr. Alistair Vance, Research Specialist

Claim Your Discount

WHY CHOOSE PURXSTRAWI

Engineered for Reliability in the Most Demanding Wilderness

Reliable Pure Water Whenever You Need It Most

image_25 (1).webp__PID:a74d5a4c-1774-4edc-9818-b6f36a711e0a

4-Stage Filtration

Utilises a 0.1-micron hollow fibre membrane and coconut carbon to eliminate 99.9999% of impurities, silt, and foul chemical odours from river sources.

Fast Gravity Flow

Filters an entire gallon of fresh water in just five minutes by gravity. No tiring pumps or moving components to break during remote expeditions.

Tough TPU Build

Constructed from puncture-resistant food-grade TPU that withstands high pressure, drops, and intense outdoor trekking.

image_26.webp__PID:dba74d5a-4c17-44fe-9cd8-18b6f36a711e

Dual Usage Flexibility

Sip straight from freshwater streams like a straw or hang the reservoir bag for group camp hydrations with the included hose and clip.

Ultra-Lightweight Storage

Folds down ultra-compactly into its included carry pouch, saving vital weight and space inside your trekking rucksack.

Emergency Readiness

A vital survival asset for power blackouts, natural storms, or emergency backup when municipal tap water is compromised.

Photo Gallery

What's Included in the Box

image_27.webp__PID:fe566644-d341-4ed9-9c29-c06944138121

1x Gravity Water Bag

1x Water Filter Straw

1x Extension Hose with Clip

1x Carrying Strap

1x Storage Pouch

Dedicated UK Support

Our customer support team is on hand to answer your questions and assist with any setup queries. We stand fully behind the exceptional quality and longevity of our outdoor gear.

Got Questions? FAQ

Everything you need to know

How does PurxStrawi filter water?

It features a 4-layer 0.1-micron hollow fibre membrane and coconut carbon system that captures micro-particles and eliminates bad tastes without chemicals.

How fast does it filter 1 gallon?

Thanks to its high-flow gravity feed design, PurxStrawi cleans a full 1-gallon reservoir in about 5 minutes without needing any tiring hand pumping.

Can I drink straight from streams?

Yes. You can detach the filter straw from the reservoir bag and sip directly from natural freshwater streams, rivers, or lakes.

Is the TPU material safe?

Absolutely. The reservoir bag is crafted from 100% BPA-free, food-grade TPU, making it highly durable, odourless, and safe for storing drinking water repeatedly.

How do I clean the system?

Simply backwash clean water through the filter straw after use to clear any trapped sediment, then air-dry before packing it into the storage pouch.

What comes in the full package?

You receive 1x Gravity Water Bag, 1x Filter Straw, 1x Extension Hose with Clip, 1x Carrying Strap, and 1x Storage Pouch.

Is it suited for emergency kits?

Yes, its compact form, high capacity, and pump-free operation make it ideal for home survival prep during storms or utility blackouts.

How long does the straw filter last?

The long-lasting membrane filters thousands of litres of water with proper maintenance and backwashing, providing reliable hydration across multiple seasons.

Customer Testimonials

Trusted by Explorers & Campers Across UK

Edward Davies

Took this on a 4-day hike in the Lake District. Filtered muddy stream water crystal clear in minutes with zero pumping. Folds down tiny in my pack. Absolute game changer!

Verified Buyer

trustpilot_2.png__PID:0ed4fc94-9698-426a-a3a9-56dff42ff0c7

Charlotte Smith

Brilliant for wild camping. The 1-gallon bag easily provided enough cooking and drinking water for three of us. The gravity flow is remarkably fast and easy.

Verified Buyer

Marcus Brown

Bought one for my emergency prep kit and another for bushcraft. The TPU bag is tough and leak-proof, and the water tastes fresh and clean without any chemical aftertaste. Highly recommend!

Verified Buyer

Claim Your Discount