British Berkefeld Water Filter with 2 7" Ceramic Filters and 2 PF-4 Fluoride Filters Big Berkey stainless steel water filter system 2 7" British Berkefeld Ceramic Super Sterasyl Filters 2 PF-4 Filters reduce/remove fluoride, MTBE, arsenic, lead, and other contaminants Can filter up to 15 gallons of water per day Holds approximately 2.25 gallons of filtered water