BeFree Gravity Water Filtration System 3L climb helmet The Tethys Pro uses the

The Tethys Pro uses the same design as the Tethys

Effective Flexible Stem

With the Crag Sender Helmet

180cm 1415 g

without the need for tools

BeFree Gravity Water Filtration System 3L climb helmet The Tethys Pro uses theElevate your game and let gravity do the filtering with the BeFree 3. 0L water filter system from Katadyn. You can drink directly from the reservoir or refill a bottle or another reservoir easily. Features Easy to use: fill and hang the ultra durable HydraPak 3. 0L reservoir using the integrated Bail Handle & Carry Loop; filters up to an impressive 2 liters per min. Easy to clean: simply shake or swish the EZ Clean Membrane to remove debris