FRONT TO BACK OVERALL INCLUDING HEATER TERMINALS IS APPROX 27”. HEATED SURFACE IS 24” X 24”. EIGHT TEMPCO CARTRIDGE HEATERS: 5/8” DIA; MODEL AO5-17-LDC-00813; 1250 WATTS; 480 VOLTS. ONE THERMOCOUPLE PORT. SEVERAL THRU HOLES FOR MOUNTING OF PLATEN; SOME DRILLED AND TAPPED HOLES ON FACE OF PLATEN. APPROX 400 POUNDS. QTY 2. ITEM #1920.