Description Calibration chart for Surge Milk Tank please provide the serial number shown on the measuring stick or old chart. Serial number is required. Model Number is required Please enter serial & model number and capacity in the notes box on the check out page special order. these are made to order from the GEA archives. Not available for tanks with serial number starting with BB This listing is for Surge Koolway Milk Tanks made in Osceola Iowa at the Mueller factory. 9/23
