FiltSipy Emergency Water Filtration
- 0.01μm Hollow Fibre Ultrafiltration Reduces Microplastics & Sediment
- Filters up to 5,000 Litres Per Straw (10,000L Total Bundle Capacity)
- Dual 28mm Threads Fit Standard Bottles, Squeeze Pouches & Gravity Bags
- BPA-Free, Pocket-Sized 13.5cm Design with Lanyards, Clips & Storage Box
Purify up to 5,000 litres of natural freshwater with advanced 0.01μm hollow fibre membrane technology.
FiltSipy transforms outdoor streams, rivers, and lakes into safe, crisp drinking water instantly. Featuring dual 28mm threads that attach seamlessly to standard water bottles, squeeze pouches, or gravity bags, it delivers robust survival hydration without batteries, pumps, or chemicals.
Heavy Backpacks, Water Rationing & Contamination Risk
- Hauling heavy, single-use plastic water bottles across rugged UK walking trails
- Drinking cloudy river water treated with unpleasant chlorine purification tablets
- Risking severe stomach upsets and illness from untreated natural freshwater sources
- Unprepared for household tap outages, severe weather floods, or outdoor survival crises
Effortless Hydration, Pure Taste & Complete Preparedness
- Drink safely and directly from freshwater streams, lakes, and rivers on demand
- 0.01μm hollow fibre membrane filters out fine sediment and microplastics
- Massive 5,000-litre filtration capacity per straw provides years of reliable use
- Ultra-compact 13.5 × 3cm pocket size fits neatly into any emergency kit or daypack
Medical-grade hollow fibre filtration meets outdoor durability.
Engineered for hiking, wild camping, bushcraft, and emergency kits.
0.01μm Hollow Fibre Ultrafiltration
Engineered with microscopic hollow fibre tubes that trap dangerous impurities while allowing clean water molecules to flow freely. Reduces microplastics, sediment, and waterborne organisms from lakes, becks, and streams.
- Precision 0.01-micron pore size effectively captures physical impurities and debris
- Pure physical filtration means 100% chemical-free water with zero aftertaste
- Provides safe, drinkable water immediately without waiting for tablets to dissolve
Universal Dual 28mm Threading
Enjoy maximum versatility in the field. Screw FiltSipy directly onto standard 28mm threaded beverage bottles, connect to squeeze pouches, attach to gravity-fed camp systems, or sip directly from the stream.
- Compatible with standard 28mm plastic beverage and water bottles widely sold across the UK
- Connects effortlessly to flexible squeeze pouches and camp gravity filtration bags
- Includes protective hygiene cap, tactical clip, carry bag, and neck lanyard
Massive 5,000L Filtration Lifespan
Built for extraordinary endurance. Each straw filters up to 5,000 litres of water, delivering long-lasting performance for repeated outdoor expeditions or long-term household emergency reserves.
- Equals over 10,000 single-use 500ml water bottles per individual filter straw
- Easily backwashed with clean water to clear trapped sediment and restore fast flow rate
- Included 2-straw bundle provides up to 10,000 litres of clean water in total
Pocket-Sized & BPA-Free Construction
Weighing practically nothing and measuring a compact 13.5 × 3cm. Crafted from food-grade, BPA-free durable materials that resist impacts and perform flawlessly in harsh weather conditions without batteries or electricity.
- Ultra-compact 13.5 × 3cm body slides seamlessly into rucksack pockets or survival pouches
- 100% mechanical operation requires zero batteries, power cords, or replacement chemicals
- Tough shock-resistant casing built for rugged outdoor environments and harsh weather
Get clean drinking water instantly in three easy steps.
Enjoy safe hydration in seconds whether you are at a Scottish loch, Peak District stream, or dealing with a home tap emergency.
Locate Freshwater Source
Uncap your FiltSipy straw and place the bottom inlet directly into any freshwater stream, lake, or puddle, or scoop water into a bottle.
Attach or Sip Directly
Drink straight through the mouthpiece like a normal straw, or screw the 28mm thread onto a standard water bottle or squeeze pouch.
Blow Out & Store Clean
Simply blow air back through the mouthpiece after drinking to flush out residual water and sediment, then replace the hygienic cap.
Compact 0.01μm survival water purifier straw for ultimate outdoor security.
FiltSipy Emergency Water Filtration
0.01μm Membrane, 5,000L Capacity Each, 28mm Dual Threads & Full Accessory Kit
- 0.01μm Hollow Fibre Ultrafiltration Reduces Microplastics & Sediment
- Filters up to 5,000 Litres Per Straw (10,000L Total Bundle Capacity)
- Dual 28mm Threads Fit Standard Bottles, Squeeze Pouches & Gravity Bags
- BPA-Free, Pocket-Sized 13.5cm Design with Lanyards, Clips & Storage Box
Why UK adventurers choose FiltSipy.
See how FiltSipy outperforms bulky water bottles and foul chemical purification tablets with 0.01μm precision ultrafiltration, 5,000-litre capacity, universal 28mm threading, and lightweight pocket convenience.
Based on 1,280+ verified purchases
Based on verified UK outdoor enthusiasts
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"Took FiltSipy on a 4-day hike across the Scottish Highlands. Drank straight from mountain streams without carrying litres of heavy water. Tasted completely crisp and clean with zero stomach issues."
"The dual 28mm thread is fantastic because it screws right onto standard water bottles from the corner shop. It filtered murky tarn water in the Lake District into crystal-clear drinking water. Unbeatable value on the BOGOF deal."
"Kept one in my hiking pack and the second in our home emergency preparedness kit in Bristol. Super lightweight at just 13.5cm and feels robustly built. Total peace of mind for any outdoor emergency."
30-Day Risk-Free Outdoor Confidence Guarantee
Take FiltSipy on your trails, wild camping trips, or keep it in your emergency kit for 30 full days. If it does not provide crystal-clear water and pure hydration peace of mind, we will refund your order in full — no questions asked.
Frequently Asked Questions
Never get caught without safe drinking water again.
Join thousands of British hikers, campers, and preppers exploring with complete hydration security. Order your FiltSipy Survival Water Purifier Straw today with our Buy 1 Get 1 Free deal and 30-day money-back guarantee.
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