HydraPak 42mm Filter Cap

Filters your water quickly and efficiently so that you always benefit from clean water for all your activities.

The HydraPak 42mm Filter Cap is the way to always drinkable water on the go. Whether you're trailrunning, cycling or in the wilderness, this filter cap is designed for all HydraPak products with a 42 millimeter opening.

It works diligently to filter up to 99.99 percent of E. Coli & parasites cysts from up to one and a half liters of fresh water. It is capable of cleaning more than one liter of water per minute. With its quick-opening nozzle, it is extremely easy to use and even microplastics with a size of at least three micrometers are effectively removed from the water.