Description: Soldier water filter is the lightest and smallest water filter. It"s a good choice for soldiers, hiking, camping, fishing, hunting, climbing, trip/ travel, out-door work, survival, emergency and also refugee and rescuer in earthquake or flood area etc. And it is also an affordable source of drinking water for people who live in the conflict area, riot area, remote village and tribe. Also, it"s very easy to operate: just pump the handle to instantly remove dangerous contaminants fromTurn rain, lake, and river water into drinkable water immediately. Ideal for: Hiking, Fishing, Hunting, Survival, Military, Foreign Travel,Emergency, etc. Normal Operation: 1) Place input hose in untreated water source (river, lake and rain, etc. ). Adjust float to keep prefilter off the bottom away from sediment 2) Place output hose into a clean water container. 3) Hold the filter vertically and begin pumping the handle in a slow, steady manner. 4) After filling water container with filtered water, remove output hose from container and input hose from water source. Continue pumping to remove remaining water from pump body. 5) Wrap input hose and output hose around housing. Store filter inside the box (bag). Cleaning method: If the filter pores of the ceramic are clogged, the ceramic needs to be cleaned. Remove ceramic cartridge by turning ceramic cover counter-clockwise. Clean the ceramic with water, if necessary with the supplied abrasive paper. Package Content: 1 set Soldier water filter(with input &output hose and prefilter 1 tube Lubricant 6x Abrasive Paper 1x Manual