Hydrapak

Filter Cap

<p>The filter cap from Hydrapak is an enormously practical item that weighs hardly anything and is always worth packing for walking or trekking.</p> <p>The screw-on hollow fiber filter fits all Hydrapak bottles. <p>The screw-on hollow fiber filter fits all Hydrapak bottles with a 42mm opening. The filter can also be attached to other bottles with a 42mm screw cap if the thread fits.</p> <p <p>The filter reliably removes bacteria, protozoa and cysts (including E. coli and Giardia lamblia) from the water. Sediments are also filtered out of the water. All you have to do is unscrew it and you can drink directly from the filter's drinking opening.