SS Stainless Steel Reverse Osmosis 4.4 Gallon Total Capacity Tank. Includes Stainless Steel Connection Stem and Stable Installation Design. Its easy to use integrated Air Stem Valve. Stainless Steel RO tank is used to increase Peak Flow Rates for High Demand Applications. This SS Stainless Steel Reverse Osmosis Tank Won't Rust and is easy to keep clean! Approximately 14" high (without the tank valve) X 11" in diameter. UPC# 850901003385