Hydrapak 28mm Filter Kit Cycling (500 mL) of water that

(500 mL) of water that has less than 40 mg/L calcium content

All other colors come with (2) Small and (2) Large patches

dimming and strobe

Flexible lime green non-slip arms

The Arc-series is built on the Silva Jet 2

Hydrapak 28mm Filter Kit Cycling (500 mL) of water thatAccess 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