Portable Water Filter Straw — 4000L, 0.1 Micron, Camping & Emergency Purifier

Clean Water. Anywhere. No Chemicals Required.

This portable water filter straw uses a 0.1 micron hollow fibre membrane to filter bacteria, protozoa and particulates from natural fresh water sources — no chemicals, no pumping, no waiting. Rated to filter up to 4000 litres of water, it fits in the palm of your hand and weighs next to nothing, making it a handy piece of kit for camping, hiking, survival, and emergency preparedness.

The dual-ended inline design connects directly to a hydration tube or standard water bottle, or can be used as a direct-drink straw from a water source.

0.1 Micron Hollow Fibre Filtration

The 0.1 micron filter membrane physically blocks bacteria, protozoa, and particulates from passing through, covering many common waterborne contaminants found in rivers, streams, lakes, and collected rainwater. No iodine tablets or chemical treatment needed.

4000 Litre Capacity

A single filter straw is rated to process up to 4000 litres of natural fresh water before replacement is needed. The service life can be extended further by backwashing the filter to clear accumulated particulates.

Versatile Use — Multiple Configurations

The dual-nozzle inline design works in several configurations:

• Direct straw — drink directly from a stream, river, or lake
• Inline filter — connect between a hydration bladder tube and mouthpiece
• Gravity filter — attach to a plastic bag, foldable bottle, or standard PET bottle for a DIY gravity filtration system
• Squeeze filter — fill a compatible soft bottle and squeeze water through

Ultralight and Impact-Resistant

Made from durable, impact-resistant materials, the filter is compact enough to fit in a pocket, attach to a keychain, or clip to a pack. At just 40g, it adds virtually no weight to your kit.

Key Features

• 0.1 micron hollow fibre membrane
• Filters bacteria, protozoa and particulates
• 4000 litre rated capacity
• No chemicals required
• Backwashable to extend service life
• Dual-nozzle inline design
• Works as straw, inline, gravity, or squeeze filter
• Ultralight: approx. 40g

Suitable For

• Camping and hiking
• Backpacking and multi-day treks
• Fishing and hunting trips
• Travel in areas with uncertain water quality
• Emergency and survival preparedness
• Scout and youth group activities