Compare Zerostart 400 Watt Engine Heater - 3200001 Part #: 3200001 Line: ZRO Zerostart 400 Watt Engine Heater 1 Year Limited Warranty Cord Length (in): 42 Inch Voltage (V): 120 Volt Bore Diameter (in): 1 Inch Wattage (W): 400 Watt Plug Type: NEMA 5-15 Amperage (A): 3.125 Amp Cord Included: Yes Engine Heater Type: Circulation Show More Show Less
Compare Zerostart 375 Watt Engine Heater - 3200002 Part #: 3200002 Line: ZRO Zerostart 375 Watt Engine Heater 1 Year Limited Warranty Cord Length (in): 42 Inch Voltage (V): 120 Volt Wattage (W): 375 Watt Plug Type: NEMA 5-15 Amperage (A): 3.125 Amp Cord Included: Yes Element Mounting Size (in): 1-1/4 Inch Engine Heater Type: Cartridge Show More Show Less
Compare Zerostart 600 Watt Engine Heater - 3200003 Part #: 3200003 Line: ZRO Zerostart 600 Watt Engine Heater 1 Year Limited Warranty Cord Length (in): 42 Inch Voltage (V): 120 Volt Bore Diameter (in): 1-1/2 Inch Wattage (W): 600 Watt Plug Type: NEMA 5-15 Amperage (A): 5 Amp Cord Included: Yes Engine Heater Type: Cartridge Show More Show Less
Compare Zerostart 600 Watt Engine Heater - 3200004 Part #: 3200004 Line: ZRO Zerostart 600 Watt Engine Heater 1 Year Limited Warranty Cord Length (in): 42 Inch Voltage (V): 120 Volt Bore Diameter (in): 1-3/4 Inch Wattage (W): 600 Watt Plug Type: NEMA 5-15 Amperage (A): 5 Amp Cord Included: Yes Engine Heater Type: Cartridge Show More Show Less
Compare Zerostart 400 Watt Engine Heater - 3200005 Part #: 3200005 Line: ZRO Zerostart 400 Watt Engine Heater 1 Year Limited Warranty Cord Length (in): 42 Inch Voltage (V): 120 Volt Bore Diameter (in): 2 Inch Wattage (W): 400 Watt Plug Type: NEMA 5-15 Amperage (A): 5 Amp Engine Heater Type: Cartridge Show More Show Less