Slip-In/ Flange Type Duct Heater is designed for use in ducts of various types of air conditioning and refrigeration systems. The Duct Heater comes in slip-in or flange type construction with built-in temperature controller. The Duct Heater operates on single phase power range of 240V or three-phase power range of 415V. The Slip-In/ Flange Type Duct Heater comes in the dimension range of 250mm X 1250mm.