The Big Berkey Kit is the ideal system for use at home with small to medium sized families for everyday use or in the event of an emergency. This whole house water filter purifies both treated water and untreated raw water from such sources as remote lakes, streams, stagnant ponds and water supplies in foreign countries. The Big Berkey water purifier removes pathogenic bacteria, cysts and parasites entirely and extracts harmful chemicals such as herbicides, pesticides, VOCs, organic solvents, radon 222 and trihalomethanes. It also reduces nitrates, nitrites and unhealthy minerals such as lead and mercury. This system is so powerful it can remove food coloring from water without removing the beneficial minerals your body needs. Virtually no other system on the market can duplicate its performance making it the best water filter available. Constructed of highly polished 304 stainless steel, the system comes complete with four purification filters and utilizes the latest technological advances. This system has a storage capacity of about 2.25 gallons (8.5 liters) and when in use it stands 19.25" in height with a diameter of 8.5". The upper chamber nests within the lower chamber for transport and stands only 13" in height. Configured with four Black Berkey purification filters the system will purify up to 7 Gallons (13.3 liters) per hour.