FiltSipy Survival Water Filtration
- 0.01μm Hollow Fibre Ultrafiltration Membrane
- Filters Up to 5,000 Litres of Fresh Water
- Universal 28mm Thread Fits Standard Bottles & Pouches
- Ultralight 13.5cm BPA-Free Design with Lanyard & Kit
Free International Shipping
Free Returns Within 30 days
Meet FiltSipy — Instant Pure Water Anywhere
Converts natural streams, rivers, and outdoor water sources into pure, clean drinking water instantly without chemicals.
Before FiltSipy
- Carrying heavy, bulky water bottles across long walking routes
- Choking down unpleasant chlorine-tasting purification tablets
- Risking severe stomach bugs and parasites from natural streams
- Unprepared when domestic tap water supplies are unexpectedly cut off
With FiltSipy
- 0.01μm medical-grade ultrafiltration membrane blocks micro-contaminants
- Massive 5,000-litre filtration capacity provides lasting water security
- Universal 28mm thread connects seamlessly to standard bottles and pouches
- Ultralight 13.5cm compact body fits straight into pockets and emergency bags
Filter Core
0.01μm Membrane
Capacity
5,000 Litres
Threading
28mm Standard Fit
Safety
BPA-Free Food Grade
Built for Extreme Outdoor Demands
Every component is engineered to deliver pure, odourless drinking water in wild and unpredictable environments.
0.01μm Hollow Fibre Ultrafiltration
Advanced hollow fibre membrane pores trap microscopic particles, silt, chlorine, and sediment without requiring chemical additives, ensuring fresh and naturally clean hydration.
0.01μm
Membrane Pore Size
5,000L
Filtration Capacity
5,000 Litres of Dependable Water
One single FiltSipy straw purifies up to 5,000 litres of natural fresh water — providing months of wild camping hydration or reliable household emergency protection.
Universal 28mm Double Threading
Easily screws onto standard 28mm disposable water bottles, squeeze pouches, or gravity bags. Drink straight from wild streams or filter directly into your drinking flask.
Universal Bottle Fit
Direct screw connection to standard 28mm bottles
28mm
Universal Standard Fit
13.5
cm Body Length
Compact 13.5cm BPA-Free Body
Constructed from rugged, food-grade ABS that is 100% BPA-free. Measuring only 13.5cm, it slips effortlessly into your jacket pocket, rucksack, or vehicle glovebox.
Clean Water in 3 Easy Steps
No complex pumping, no waiting for chemicals to dissolve. Pure, refreshing hydration on demand.
Submerge or Attach
Place the inlet directly into a freshwater source, or screw the 28mm base securely onto standard plastic bottles or water pouches.
Sip or Squeeze
Drink directly through the comfortable mouthpiece or gently squeeze your attached bottle to filter pure water into cups and cooking pots.
Clear & Store
Blow gently through the mouthpiece to clear remaining water, clip on the protective dust caps, and pack into its storage box.
See FiltSipy Up Close
Compact, durable, and precision-engineered for dependable outdoor hydration across the UK.
FiltSipy Survival Water Filtration
0.01μm Ultrafiltration Membrane Straw
- 0.01μm Hollow Fibre Ultrafiltration Membrane
- Filters Up to 5,000 Litres of Fresh Water
- Universal 28mm Thread Fits Standard Bottles & Pouches
- Ultralight 13.5cm BPA-Free Design with Lanyard & Kit
FiltSipy vs. Traditional Alternatives
See why UK hikers, wild campers, and survivalists choose FiltSipy over bulky filters and chemical tablets.
| Feature |
|
|
|
|---|---|---|---|
| Instant Pure Water | Requires 15–20 Mins | ||
| Filtration Capacity | Up to 5,000 Litres | 20–50 Litres per pack | Limited by Stove Gas |
| 0.01μm Ultrafiltration | |||
| Zero Chemical Odour | |||
| Standard 28mm Bottle Fit | Bulky Cooking Gear | ||
| Pocket Sized (13.5cm) | Ultralight 13.5cm | ||
| Ready Without Power or Gas |
The Clear Winner for Outdoor Hydration
FiltSipy provides superior filtration speed, 5,000L capacity, and pure natural taste in one pocket-friendly straw.
Trusted by 47,000+ UK Outdoor Enthusiasts
Real hikers, wild campers, and prepared households across the United Kingdom.
"Took FiltSipy along the West Highland Way in Scotland. Sourced water directly from mountain streams with zero stomach upset or chemical taste. Incredibly light in my rucksack!"
James W.
Edinburgh, Scotland
"We keep two in our home emergency kit in Yorkshire and one in the car glovebox. Tested it during a weekend camp in the Lake District – screwed straight onto a standard water bottle. Brilliant bit of kit."
Emma C.
Leeds, West Yorkshire
"Outstanding build quality and flow rate. Used it over a 3-day trek across the Peak District. No waiting around like with purification tablets, just crisp, fresh water straight from the stream."
Oliver D.
Manchester, Greater Manchester
By The Numbers
Proven Dependability in the Field
5,000L
Clean Water Per Filter
4.9/5
From 2,847 UK Reviews
0.01μm
Ultrafiltration Accuracy
<1%
UK Return Rate
30
Days
100% Money-Back Guarantee
We are confident FiltSipy will be your favourite hydration companion. If you are not completely satisfied with your purchase for any reason, contact our UK customer support team within 30 days for a full refund. No questions asked.
Frequently Asked Questions
Everything you need to know about FiltSipy before you order.
FiltSipy utilizes medical-grade hollow fibre ultrafiltration membranes with micro-pores measuring just 0.01 microns. As water passes through, physical blockades trap micro-particles, sediment, and silt without using chemicals, leaving only clean drinking water.
Never Get Caught Without Pure Water.
Prepare with FiltSipy Today.
Join 47,000+ UK adventurers and families who enjoy instant, clean drinking water anywhere. Claim your FiltSipy at 50% off today.
Claim Your 50% Discount