FiltSipy Water Filter Straw UK
- 0.01μm Hollow Fibre Ultrafiltration Technology
- Up to 5,000 Litres Filtration Capacity per Straw
- Dual 28mm Threaded Bottle & Pouch Connection
- Includes 2 Straw Filters, Carabiners, Lanyards & Manual
Turn natural British streams and lakes into crystal-clear drinking water.
Engineered for hikers, wild campers, and survival preparedness across the UK, FiltSipy delivers instant filtration wherever freshwater flows. Its 0.01μm hollow fibre membrane removes microscopic impurities, dirt, and microorganisms in real time—delivering pure, clean-tasting water directly from the source.
Without FiltSipy
- Carrying heavy, back-breaking water bottles on strenuous hill walks
- Constant anxiety about waterborne bugs and parasites in remote streams
- Waiting 30+ minutes for foul-tasting chlorine tablets to dissolve
- Risk of dehydration during unexpected emergencies or prolonged hikes
With FiltSipy
- Ultralight 13.5cm pocket straw reduces backpack weight dramatically
- Instant 0.01μm ultrafiltration removes micro-particles and organisms
- Crisp, natural tasting water without unpleasant chemical additives
- Massive 5,000-litre filtration capacity provides years of reliable use
Pure Hydration Anywhere in the Great British Outdoors.
Ultrafiltration hollow fibre tech, dual 28mm threading, and battery-free design.
0.01μm Hollow Fibre Ultrafiltration Membrane
Sip safely from rivers, tarns, and waterfalls. The 0.01-micron hollow fibre membrane physically blocks micro-particles, sediment, and harmful freshwater microorganisms without relying on electricity or harsh chemicals.
- Microscopic 0.01μm pore size blocks fine dirt, sand, and microorganisms
- Pure physical filtration preserves natural water taste with no chemical odour
- Each individual straw filters up to 5,000 litres of natural freshwater
Dual 28mm Threaded Connection for Maximum Versatility
Versatile compatibility built right in. The standard dual 28mm screw threads allow you to attach the straw directly to popular disposable water bottles, squeeze bags, or standard hydration bladders.
- Fits standard 28mm threaded water bottles and soft hydration pouches
- Drink directly from natural springs or filter into your camp cookware
- Threaded bottom allows seamless gravity filtration setups at camp
Ultralight, Compact 13.5cm Pocket-Sized Profile
Never leave safety behind. Measuring just 13.5 × 3cm and featherlight, FiltSipy slots effortlessly into jacket pockets, rucksack side pouches, gloveboxes, and emergency survival kits.
- Slim 13.5cm design adds practically zero weight to your walking gear
- Includes a durable carabiner clip and lanyard for quick pack attachment
- Rugged construction built to withstand rough UK weather and wilderness handling
100% BPA-Free & Battery-Free Operation
Ready whenever you need it. Constructed from food-grade BPA-free materials, FiltSipy requires zero charging, batteries, or replacement cartridges, making it totally dependable in any emergency.
- Food-grade BPA-free construction ensures non-toxic, safe everyday use
- No batteries or charging cables needed—operates purely on manual suction
- Reusable and easily backwashed to maintain smooth flow rate season after season
Clean, Safe Drinking Water in 3 Easy Steps.
No complicated pumps or long waiting times on the trail. Simply uncap, connect, and enjoy instant purified water wherever you wander.
Uncap Your Straw
Remove the protective hygienic end caps to expose the mouthpiece and bottom 28mm filtration port.
Submerge or Screw On
Place the base directly into any freshwater stream, or screw it onto a standard 28mm bottle or pouch.
Sip Fresh Water
Take a gentle sip through the mouthpiece. The ultrafiltration membrane instantly purifies water as you drink.
The Essential Water Purifier for UK Hikers & Campers Every Adventure.
FiltSipy Water Filter Straw UK
Compact 0.01μm Hollow Fibre Water Filter Straw with Dual 28mm Threads & 5,000L Capacity per Unit
- 0.01μm Hollow Fibre Ultrafiltration Technology
- Up to 5,000 Litres Filtration Capacity per Straw
- Dual 28mm Threaded Bottle & Pouch Connection
- Includes 2 Straw Filters, Carabiners, Lanyards & Manual
Why UK outdoor enthusiasts choose FiltSipy for clean hydration.
Heavy water bottles weigh you down, while purification tablets taste terrible and take half an hour to work. FiltSipy combines 0.01μm hollow fibre filtration with instant bottle compatibility in a 13.5cm pocket-sized design.
Based on 1,420+ verified UK customer reviews
Based on verified UK purchases
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"Took these on a 4-day wild camping route in the Lake District. We drank straight from mountain streams and tarns without any stomach issues. The water tasted wonderfully crisp and pure. Total game changer for reducing rucksack weight!"
"Brilliant little filters. Having the 28mm threading means I can screw it right onto my standard water bottle or squeeze pouch. We kept one straw in our hiking pack and one in the car emergency kit. Exceptional value with the 2-straw deal."
"Lightweight, reliable, and super simple to use. Tested it across the Yorkshire Dales on a warm weekend hike when streams were our only source. Fast flow rate and completely zero plastic or chemical taste. Very fast UK delivery too!"
30-Day Total Peace-of-Mind Guarantee
Take FiltSipy on your next UK outdoor expedition for 30 full days. If you are not thoroughly impressed by its effortless flow, robust build, and pure water taste, simply return it for a swift, no-quibble refund.
Got Questions? We Have Answers
Enjoy Pure, Safe Hydration Anywhere Across the UK with FiltSipy
Join thousands of British hikers, campers, and outdoor adventurers who trust FiltSipy. Order today to claim your Buy 1 Get 1 Free bundle with free tracked UK delivery.
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