The Berkey Light Water Filtration System with 2 Black Filter Elements is a high-quality water filter that is compatible with Berkey brand products. Made with carbon composite material, this filtration system utilizes carbon/charcoal filtration to remove bacteria from your water. It has a capacity of 2.75 gallons and is suitable for both commercial and household use. With its compact size and easy-to-use design, this water filter from Berkey is a convenient and effective solution for clean and safe drinking water.