SIXTEEN (16) ½” DIA. CARTRIDGE HEATERS PER PLATEN. TWO (2) THERMOCOUPLES PER PLATEN. WATER COOLING PORTS ½” NPT IN AND OUT ON ONE 32” SIDE. HEATED AREA 30 ½” X 30 ½”. INSULATION AND SHEET METAL ON ALL FOUR SIDES. OVERALL DIMENSIONS: 32” L to R X 38” F to B. TWO PLATENS HAVE ADDITIONAL ½” THICK REMOVABLE WATER COOLING PLATE MOUNTED ON BOTTOM. QTY 3. ITEM #912.