3L Gravity Filtration: 3L water reservoir can be connected to the water filter for gravity water filtration. 3L collapsible water tank can be connected to another side of the water filter. The whole filtration system can be connected inline. You can walk away while the water filtered. It is unnecessary to watch it to make sure that it is going to overfill the water container. 3L = 0.79gallons.
1L Attachable Collapsible Bottles: Threads on filter both sides. Collapsible bottles can be screwed on both sides of the filter. Water can be squeezed through the water filter easily. Or hang bottles with filter on your backpack and use gravity to filter water while walking.
Lightweight Filtration System: 300g (10.58 oz) is the whole weight of the system. Easy to store. Very light filter setup for volume water you get. 2000L drinkable water in your campsite satisfies your water need.
Endurable Water Container: Food-grade premium quality materials. The water bladder passed the pneumatic pressure test. A tough seal between bottle top and filter. It allows you to remain active without worrying about spills or leaks on the go.
Simplicity: Quick setup and quick disassemble. Get clean water to cook emergency dry-freeze food instantly for emergency situations.