First Need

True to its name, this high output purifier supplies base camp-sized volumes of pure water to expeditions world-wide. Safely removes microbiological, chemical and aesthetic contaminants with its unique chemical-free purification process Double-action pump supplies more water with less work; adaptable to gravity-assist setup Unique, proprietary-design pre-filter removes silt and larger...

Rejuvenate your First Need XL Purifier with this replacement cartridge. Cleans up to 150 gal. of water before replacement under ideal conditions Removes cryptosporidia, viruses and bacteria from water Replacement filter weighs 8.4 oz.

Attach your First Need XL water purifier directly to Platypus flexible water bottles and reservoirs (sold separately) with this narrow-mouth adapter. Also attaches to standard 2-liter soda bottles Plastic cap keeps the adapter clean and contamination free

This replacement canister is built for the Trav-L-Pure Portable Water Purifier. Sealed canister, no brushing, scraping or contact with contaminants

Attach your First Need XL water purifier directly to Sigg bottles and Nalgene mid-size bottles (sold separately) with this wide-mouth adapter. Also fits other popular wide-mouth containers and bottles Plastic cap keeps the adapter clean and contamination free

Designed for international adventurers, the self-contained First Need Trav-L-Pure water purifier can be filled from a sink or pitcher, making it ideal for travel. Quick and convenient—no dangling hoses to contend with, no chemicals, no hold time or back-washing maintenance Safely removes microbiological, chemical and aesthetic contaminants with its unique...