28 mm Filter Kit climbing guidebook A heavy-duty

A heavy-duty

newly reinforced with aluminum for increased rigidity

tint-adjusting technology that adapts to changing light conditions

inspired by Michelle Parker

28 mm Filter Kit climbing guidebook A heavy-dutyAccess potable water anywhere. Our unique and versatile 28MM inline filter threads directly onto popular 28MM opening bottles and flasks and is equally easy to install in any of our reservoirs and caps with a Plug N Play connect system. This versatile connectivity makes our filter a great backcountry water treatment solution whether you are squeezing your water from a Stow into another bottle, gravity filtering your water out of a Seeker or Pioneer