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Gravity Filter

What is a gravity filter?

A gravity filter is a water purification system that uses gravitational force to push water through a filtration element, requiring no pumping or electrical power. It consists of a dirty water reservoir that hangs above a clean water collection container, with a filter cartridge connecting the two. This hands-free system is popular among backpackers and campers because it can filter large quantities of water with minimal effort, making it ideal for group camping or when you need to process water while doing other camp tasks.

Related Terms

Water Filter

A water filter is a portable device used by campers, hikers, and backpackers to remove contaminants, bacteria, and debris from natural water sources like streams, lakes, and rivers. It works by forcing water through physical barriers such as ceramic, carbon, or hollow fiber membranes that trap harmful microorganisms and particles while allowing clean water to pass through. Water filters are essential gear for backcountry travel where access to safe drinking water is limited, providing a lightweight alternative to carrying large quantities of water. Most outdoor water filters can process several hundred to thousands of gallons before requiring replacement or maintenance.