Product details:

40, Vertical Tank Style, 10.6 Gallons Drawdown @ 20-40 PSI, 9.0 Gallons Drawdown @ 30-50 PSI, 7.8 Gallons Drawdown @ 40-60 PSI, 6.8 Gallons Drawdown @ 50-70 PSI, 6.1 Gallons Drawdown @ 60-80 PSI, 5.5 Gallons Drawdown @ 70-90 PSI, 5.1 Gallons Drawdown @ 80-100 PSI, Height (In.) 56 1/2, Dia. (In.) 16, Length (In.) 16, Inlet/Outlet NPT (In.) 1 1/4 F, Inlet Distance (In.) 2, Max. Working Pressure (PSI) 100, Construction Material Fiberglass-Wound