In disastrous times this filter kit will keep you hydrated with clean water even from a lake, stream or tap. Clean and reuse the filter over 100 times. Features: 4 inches filter, sock, spigot and instructions Accepts water from floods, lakes, rain, wells, tap, rivers or streams Filters approximately 30 to 35 gal of water per day Removes bacteria, chemicals and other contaminants Clean 100+ times with soft brush or damp cloth Unlimited shelf life, easy installation