The Katadyn BeFree Water Filtration System 1L is an award winning compact flexible and lightweight solo water filter that fits in your pocket with an ultra fast flow that is ideal for ensuring that you can quickly and easily filter fresh drinking water on your next outdoors adventure The BeFree EZ-Clean Membrane filter cartridge is tiny 11 x 6cm approx inc nozzle yet it removes protozoa 99 9 and bacteria 99 9999 to EPA standards even from cloudy water incredibly quickly and easily Each cartridge lasts for up to an impressive 1000 litres What makes this filter so compact is the way the small filter is housed in a Hydrapak Softflask which is a soft yet rugged collapsible and BPA-Free flask that holds up to 1 litre of water so when you are not using it you can roll it up and pop it in your pocket ready for when you next need it This water filter has a wide mouth flask opening for easy filling and a stay clean drink nozzle The filter itself is really easy to clean simply shake or swish no need to backflush Here at OutdoorGear we think the BeFree water filters are worth stashing in your gear to ensure that you can stay hydrated wherever you go and we are pleased to hear that they have won several accolades already including Outdoor Magazine Editors Choice Award in Best Filter 2018 Outdoor Industry Gold Product Award 2017