LifeStraw Peak Series Gravity Water Purifier System 8L

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The LifeStraw Peak Series Purifier is a powerful portable water filtration system for camping and group travel. It can produce up to 30 litres of clean water per hour without pumping or power.

LifeStraw says: 

The LifeStraw Peak Series Gravity Water Purifier is a portable, high-capacity water purification system that removes viruses, in addition to bacteria, parasites and microplastics from drinking water. This rugged, 8L system boasts a high flow rate of 30L/hr and has a lifetime capacity of 18,000 liters – about five years of safe drinking water for a family of five. The product is ideal for emergency preparedness and survival situations as well as camping, adventure and international travel. The kit includes a leakproof cap, custom backwash syringe, and hang strap with carabiner for easy hanging and carrying. The system functions exclusively off of gravity and does not require any pumping, batteries or power sources.

Our Verdict

The LifeStraw Peak Series Gravity Water Purifier is an impressive portable water filtration system perfect for camping, travelling with a group, and more. Its 8L capacity and gravity-fed design don’t require pumping or power to produce up to 30L of clean drinking water per hour. The 0.02-micron ultrafilter membrane removes 99.999% of viruses, bacteria, parasites, microplastics, and particulates from water sources.

What makes this system stand out is its long-lasting 18,000-liter capacity—enough for a family of 5 for around 5 years. The rugged design includes a backwash syringe to extend filter life. Well-constructed from BPA-free FDA-approved materials, it comes with convenient accessories like a hanging strap, leakproof cap, and adapter for filling bottles directly.

This is an excellent option for groups of 3-5 backpackers looking to reduce their overall pack weight. However, if you are hiking alone, it is excessive.

– Reviewed by Ultralight Outdoor Gear

Features

• REMOVES VIRUS, BACTERIA + PARASITES: the Ultrafilter Membrane protects against viruses (Rotavirus, Hepatitis A), Bacteria (including E.coli + Salmonella), Parasites (including Giardia and Cryptosporidium), Microplastics, sand, dirt, and cloudiness
• HIGH FLOW RATE: 30L/hr from gravity – no pumping or external energy source required.
• LONG LASTING: The ultrafilter membrane has a lifetime capacity of 18,000 liters – about five years of safe drinking water for a family of five
• INCLUDES: 8L gravity bag with carry strap and carabiner, 1.2m hose, Ultrafilter membrane, adapter to enable direct filling of water bottles with 28mm standard threading, prefilter basket, leakproof cap and backwash syringe
• LifeStraw is proud to be a B Corp and Climate Neutral Certified brand,
• For every purchase, a child in need receives safe drinking water for an entire year

Specifications

• Weight: 721g
• Hose Length: 1.2 m / 47.2 in
• Height: 189.7cm / 74.7 in
• Volume: 8L / 2.1 gal