Portable water filtration for safe drinking water from any freshwater source. Removes 99.99% of bacteria and parasites.
In any survival situation, access to clean drinking water is your top priority. You can survive weeks without food but only about three days without water. A portable water filter lets you safely drink from streams, rivers, lakes, and even puddles — turning potentially deadly water sources into safe drinking water within seconds.
Use a water filter whenever you need to drink from an untreated natural water source. Essential for hiking, camping, and any emergency where mains water is unavailable. In the UK, even crystal-clear mountain streams can harbour Giardia, Cryptosporidium, and E. coli.
Removes bacteria and protozoa. Look for NSF/ANSI certifications.
Higher flow rates mean less waiting. Look for at least 1 litre per minute.
Good filters last 1,000–4,000 litres before replacement.
For hiking kits, choose filters under 100g that pack flat.
Dirty water clogs filters fast. Use a bandana or cloth as a pre-filter.
Most portable filters don’t remove viruses. In developing countries, pair with purification tablets.
Ice crystals damage filter membranes. Sleep with your filter in your sleeping bag in winter.
A pocket-sized straw filter that lets you drink directly from streams, rivers and lakes. No batteries, no chemicals and no moving parts — one of the simplest ways to make untreated water safe when the tap stops running.
A rugged 18.5-litre jerrycan with a built-in ultrafiltration cartridge that removes viruses, bacteria and cysts as you pour. Fill it from a rain butt, stream or standpipe and it delivers clean drinking water for a household — up to 20,000 litres per cartridge, with no power or chemicals.
LifeStraw's Peak Series straw is a rugged update to the classic personal filter: sip straight from a stream, puddle or water butt, or thread it onto a standard bottle or an inline hydration line. It removes bacteria, parasites and microplastics down to 0.2 microns with no batteries, chemicals or waiting. A sensible last-line backup to keep in a grab bag or the car for when the taps or your main filter let you down.
The original suck-through survival straw: dip it in a stream, puddle or water butt and drink directly through the hollow-fibre membrane, which filters out bacteria, parasites and microplastics down to 0.2 microns. It needs no batteries, chemicals or pumping, and one filter is rated for around 4,000 litres, so it earns its place in a grab bag or car for when the mains supply fails or you're caught out on the hills.
A stainless-steel personal filter straw that lets you drink safely straight from a stream, water butt or a tap you do not trust. It removes bacteria, parasites and microplastics, so it is a sensible thing to keep in a grab bag or the car for when mains water fails or you are caught out on the hills. Reusable with a replaceable membrane rather than a throwaway design.
A lightweight straw-style filter with a 0.01-micron hollow-fibre membrane, meant for drinking directly from streams, lakes or an untreated tap when the mains supply can't be trusted. It's a personal, single-user tool for hikes and grab bags rather than a way to treat water for a whole household. Rinse-to-clean design keeps flow reasonable over its stated lifespan.
A refillable bottle with a built-in filter that reduces chlorine taste and fine particles as you drink. It's aimed at everyday tap top-ups and day walks rather than treating dubious wild water, so pair it with purification tablets for genuine emergencies. A recognisable brand and an easy, low-effort way to keep drinking water palatable on the move.
A replacement filter cartridge for Water-to-Go bottles that removes viruses, bacteria, protozoa, microplastics and many chemicals from questionable water. It's designed as a consumable, so keeping a spare means your filter bottle stays usable well past the first cartridge. Note this is the filter only and needs a compatible Water-to-Go bottle.
A leak-proof 2-litre reservoir with a bite-valve hose that fits inside most packs, so you drink steadily on the move.
A BPA-free 8-litre water carrier that folds flat when empty, so it takes up almost no room until you actually need to store or move water. Handy to keep in a cupboard for a supply interruption, or in the car for camping and days out. The carry handle and tap make pouring and hand-washing straightforward.
Fifty compact tablets that make questionable water safe to drink when you can't boil or filter it. Each treats around a litre, so a single pack covers weeks of emergency use and weighs almost nothing in a grab bag. A cheap, long-life backup to keep alongside a proper filter, not instead of one.
Chlorine dioxide tablets that treat questionable water to make it safer to drink. A tiny, long-life backup for when filtering or boiling isn't possible.
A sturdy 10-litre HDPE water container with a built-in tap for storing and dispensing drinking water. Useful for topping up a household reserve before a storm, or carrying water home if the mains supply is cut.
The near-unbreakable 1-litre bottle that's a staple of hiking and prep kit. The wide mouth takes ice, mixes rehydration salts easily and pairs with most inline filters, making it a dependable everyday water carrier.
A detailed comparison of the three main water purification methods available to UK preppers — including cost, effectiveness, portability, and which UK water sources each method suits best.
Everything you need to know about assembling a reliable survival kit for UK conditions — from essential gear categories to budget-friendly options and proper storage.
A comprehensive guide to the essential items every survival kit needs, from water purification to shelter and communication.
