Description Dimensions; 21.75 inch diameter 53.8 inch height old number 8823750 New Mueller Number 8828038 Model D recovers up to 60 percent of your milk cooling system's wasted heat energy. Single refrigeration circuit Fre-Heater Model D A Model D Fre-Heater consists of a heavy-duty, glass-lined storage tank surrounded by our stainless steel Temp-Plate® heat transfer surface for maximum heating efficiency. Two-inch foam surrounds the Temp-Plate surface, keeping heat within the tank. Rust-resistant, stainless steel outer jacket houses the entire assembly for protection and appearance. Made in USA by Mueller Ships LTL on a pallet. FOB. Customer may pickup item at factory in Osceola Iowa or in Maysville Missouri Related Items; 8828038 D-50 Fre-Heater 50 gallon single circuit 5/8 ODM 8828037 D2-50 Fre-Heater 50 gallon dual refrigeration circuits 5/8 ODM 8828036 D-80 Fre-Heater 80 gallon dual refrigeration circuits 3/4 ODM 8828032 D-120 Fre-Heater 119 gallon dual refrigeration circuits 3/4 ODM 8828037 D2-120 Fre-Heater 119 gallon dual refrigeration circuits 1 1/8 ODM 8828029 DH-120 Fre-Heater 119 gallon dual refrigeration circuits 1 5/8 ODM 8825141 DHS-120 Fre-Heater 119 gallon Single