katadyn befree gravity 3l vandens filtras stovyklavimuiImprove your skills and let gravity do the filtering with the BeFree 3. 0L Katadyn Water Filtration System. You can fill your water bladder using the included quick disconnect hose kit. Ease of use: Fill and hang the ultra durable HydraPak 3. 0L container using the integrated handle carrying loop; filters up to an impressive 2 liters per min. Easy to clean: simply shake or shake the EZ Clean membrane to remove debris. Foldable small 3. 0L tank. 0. 1