Best pressure tank on the market, designed to last 5+ years;Pre-charge at about 5-7 psi;Standard bladder, food grade, no rubber smell, no plastic smell, stainless steel connection on top;4 gallons outside volume, holds 3. 2 gallons of water

• 4.0-Gallon Reverse Osmosis RO Water Storage Tank by TANKRO
• 4 GALLONS
• WHITE

4.0-Gallon Reverse Osmosis RO Water Storage Tank by TANKROExpress Water Inc