Balboa OEM Heater ASSY, M7 Sensors, Power Cord, VS100, 4.0KW, 58203-01 1x Balboa brand OEM Heater Assembly with M7 Dual Sensors and Power Cord. This is the "Original" heater by Balboa. OEM part number 58203-01. Heater Dimensions are approximately 10" L x 1.5" Diameter (Actual hole diameter is 1.9"). FEATURES Stainless Steel Heater Housing 4.0KW 220V Incoloy Flo-Thru Heater Element Outputs 1.0KW on 110V Application Top Mounted Electrical Box Balboa OEM M7 Dual Sensors, 36-inch Power Cord with 3-Prong Amp Plug, 36-inch NOTE: The heater element is NON-Replaceable. This heater is the replacement heater for the following Balboa VS100 Control Kits: 54805, 54821 This heater is also a replacement option for the following heater part numbers: 58205, 58198-01, 58352 (4.0KW, 240V ONLY), 58198 (1.0KW, 120V ONLY)