Pure, Safe Drinking Water Anywhere: Meet the Collapsible Klentax 1000ml Water Filter Bottle
Turn streams, rivers, and questionable taps into crisp, purified water instantly. Featuring a 0.1-micron hollow fibre membrane in a collapsible 1000ml flask, Klentax eliminates contaminants on demand so you can explore lighter without carrying bulky supplies.
- 0.1-Micron Hollow Fibre Membrane Purifier
- Collapsible 1000ml Soft Flask Saves Space
- Safe, Food-Grade BPA-Free Materials
- Secure Anti-Loss Trail Wrist Lanyard
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Drink Freely from Natural Sources with Instant, Medical-Grade Water Filtration
Instant 0.1-Micron Water Purification
Hollow fibre ultrafiltration removes harmful bacteria, microplastics, and sediment instantly as you drink. Simply fill up from any freshwater source and enjoy clean, crisp hydration without waiting.
Collapsible Design for Ultralight Travel
Crafted from durable TPU, the 1000ml flask rolls down compactly when empty. Free up essential backpack space and cut unnecessary trail weight compared to rigid, heavy metal or plastic bottles.
Wide Mouth & Anti-Loss Lanyard
The wide neck makes rapid refills at rivers effortless while simplifying cleaning and drying. The reinforced wrist lanyard keeps your flask secure during running, climbing, and paddling.
Trusted by over 18,500 hikers, wild campers, and global travellers
"Reliable hydration is crucial outdoors. Klentax combines rigorous 0.1-micron filtration with an ultralight collapsible build, making safe backcountry drinking water practical for all adventurers."
Dr. James Wilson, Research Specialist
WHY CHOOSE KLENTAX
Engineered for Pure Outdoor Hydration Whenever You Need It
Every feature designed for trail performance
Advanced 0.1-Micron Filter
Captures microscopic protozoa, bacteria, and particulates without requiring chemicals, batteries, or pumping mechanisms.
Space-Saving Soft Flask
Flexible TPU body compresses down as you drink, fitting neatly into running vests, rucksack pockets, or bike bags.
BPA-Free Materials
Constructed from 100% food-grade, odour-free TPU and soft silicone that keep your water pure and taste-free.
Quick Refill Wide Mouth
Dip and fill fast in flowing streams or shallow basins, then rinse and dry in seconds with minimal maintenance.
Built-In Secure Wrist Lanyard
Keep a solid grip during strenuous ascents or water crossings without the risk of dropping your essential flask.
All-Adventure Versatility
Perfect for backpacking, trail runs, bikepacking, overseas holidays, and essential household disaster survival kits.
See in Action
What's Included in Your Order
1x Flask Body
1x Filter Cap
Packaging Set
Customer Satisfaction
We stand behind Klentax with our 30-day money-back guarantee and dedicated UK-based customer care. Enjoy complete confidence and safe water on every trip or receive a full refund.
Frequently Asked
Got questions about Klentax?
REAL EXPERIENCES
Loved by Outdoor Enthusiasts Across the UK
Mark S., Cumbria
Took Klentax on a 3-day Lake District trek. Refilled from mountain becks without carrying extra water weight. The flow rate is great and water tasted completely fresh.
VERIFIED BUYER
Sarah T., Brecon
Folds down to almost nothing in my running vest. Easy to fill at shallow streams, and the wrist lanyard is a smart touch. Essential kit for trail runners.
VERIFIED BUYER
David L., Highlands
Super sturdy TPU build and zero plastic taste. Filled straight from Scottish lochs with total peace of mind. Highly recommend to any wild camper or hiker.
VERIFIED BUYER