The Berkey Base is a must-have accessory for gravity filtration systems like the Big Berkey, the Travel Berkey, and the Berkey Light systems. Made of a durable, non-BPA copolyester, this base elevates your purifier to enable containers to fit under the spigots. Say goodbye to placing your purifier on the edge of a table or counter! This base is designed to fit under most gravity filtration systems, allowing them to be used directly on the ground or any flat surface. With a height of 5.125″ and a diameter of 8 5/8″, the Berkey Base is a versatile and practical solution to make your water purification system more convenient and accessible.