FiltSipy Personal Water Filter Straw
FiltSipy Personal Water Filter Straw
What If Every Fresh Stream Was Safe to Drink?
FiltSipy transforms fresh mountain streams, tarns, and rivers into clean drinking water in seconds. Ultra-light, dependable, and completely chemical-free.
Before FiltSipy
- Struggling up hills under heavy, sloshing water bottles
- Hesitating to drink from crystal-clear mountain streams
- Waiting 30 minutes for messy chemical purification tablets
- Carrying bulky, fragile pump equipment that clogs easily
After FiltSipy
- Drink safely straight from natural streams and rivers
- Trek light without carrying kilograms of bottled water
- Rely on up to 5,000 litres of clean, refreshing water
- Stay fully prepared for wild camping, expeditions, and emergencies
Ultra-Pure Filtration
Filters sediment down to 0.01μm
Ultra-Lightweight
Compact 13.5 × 3cm pocket size
Long-Lasting Life
Up to 5,000 litres capacity
Universal Fit
Dual 28mm thread connections
Built for Pure Wilderness Hydration
Engineered for British hillwalkers, wild campers, anglers, and travellers who require instant, reliable water from natural sources.
0.01μm Hollow-Fiber Membrane
Harnessing an advanced 0.01μm hollow-fiber membrane, FiltSipy drastically cuts down sediment, micro-contaminants, and suspended organic debris for crisp, natural taste.
Dual 28mm Threaded Versatility
Engineered with versatile dual 28mm threads. Sip directly like a straw, screw it onto standard water bottles, connect squeeze pouches, or link into hydration bladders.
Stated 4,000–5,000L Service Capacity
A single compact unit filters roughly 4,000 to 5,000 litres of natural water. That is enough hydration to power years of wild camping and off-grid expeditions.
5,000L
Max Output
0.01μm
Pore Size
0W
Power Needed
Pocket-Sized BPA-Free Build
Constructed from tough, BPA-free, food-grade materials. Sized at just 13.5 × 3cm, it fits anywhere and comes complete with a handy carrying clip and lanyard cord.
Fresh Water in 3 Easy Steps
No tedious hand pumps. No batteries or waiting for tablets to dissolve. Clean water is just three simple steps away.
Submerge or Screw On
Dip the straw into a stream or screw it directly onto any standard 28mm bottle or pouch.
Sip or Squeeze
Draw water directly through the mouthpiece or gently squeeze your flexible bottle.
Drink with Confidence
Enjoy clear, sediment-free hydration with zero pumps, chemicals, or strange aftertaste.
See FiltSipy Up Close
FiltSipy Personal Water Filter Straw
Personal Water Filter Straw
See How We Compare
Not all outdoor water filters offer the same reliability and ease.
5,000L
Litres of pure drinking water
0.01μm
Membrane filtration pore size
0
Batteries or charging required
Based on 4,800+ verified reviews
Trusted by Hikers Across the UK
@j*****n
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"Used the FiltSipy throughout a 3-day wild camp in the Lake District. Drank straight from mountain streams without lugging heavy bottles. Absolutely brilliant bit of outdoor kit!"
James H. from Keswick
Verified Buyer
"It screws directly onto standard water bottles and takes up virtually no room in my rucksack. Filtered fresh, crisp water along the West Highland Way. Top quality!"
Emma W. from Edinburgh
Verified Buyer
"Kept one in my hillwalking pack and another in my car boot emergency kit. High flow rate, durable food-grade plastic, and fantastic peace of mind for just £34."
Oliver T. from Bristol
Verified Buyer
4,800+ verified reviews
30-Day Money-Back Guarantee
Put FiltSipy to the test on your next hike for 30 days. If you are not completely satisfied with its compact convenience and pure performance, return it for a full refund—no questions asked.
Frequently Asked Questions
Everything you need to know before your next trek.
Safe Drinking Water Anywhere You Roam
Join 4,800+ UK outdoor enthusiasts who explore with total hydration peace of mind. Risk-free with our 30-day guarantee.
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