DBSL02250B20SNN3RTD0000xxxxx 28in. 500W, 208V 1Ph, 2.40A QMARK Slimline Aluminum Convection Heater with a Single Heat Deck Standard Layout. Controls Options Include Right Hand Incoming Power, Single Pole Thermostat, Disconnect Switch. Cabinet to have Neutral Grey Finished Front and Neutral Grey Finished Back with Bottom Inlet, No Knockouts on Back, End Caps and Pedestal Legs. Q-MARK