Thermal Expansion Tank, Maximum Operating Pressure 150 psi, Maximum Operating Temperature 210 Degrees F, Outside Diameter 8 in, Overall Height 15 in, Pipe Size 3/4 in, Tank Capacity 2 gal, Precharge Pressure 40 psi, Connection Material Stainless Steel, Diaphragm Material Butyl Rubber, Expansion Tank Type Diaphragm, Manufacturer Warranty Length 5 yr, Market Residential, Precharged Yes, Standards Complies with NSF 61, Lead Free, UPC, Tank Material Stainless Steel, Thread Type MIP. This item has been restricted from sale in the following state (s): []