MSR TrailShot Filter Cartridge & Maintenance Kit Butterfly it's small in size and

it's small in size and big on ability

for an increased output of 300 total lumens

HAIII military grade hard-anodized

Springs at bezel and tail resist shock

Together they provide the most reliable water possible

MSR TrailShot Filter Cartridge & Maintenance Kit Butterfly it's small in size andThis kit contains a replacement filter cartridge for the TrailShot filter, as well as the small components and instructions necessary to service your TrailShotwater filter for lasting performance. Replacing your filter cartridge is easy to do and will restore the filters flow rates. The filter cartridge lasts up to 2,000 liters, depending on the water conditions you filter.