Compare Zerostart 65 Watt Engine Heater - 3100006 Part #: 3100006 Line: ZRO Zerostart 65 Watt Engine Heater 1 Year Limited Warranty Thread Size: M28 Cord Length (in): 60 Inch Voltage (V): 120 Volt Wattage (W): 65 Watt Amperage (A): 3.48 Amp Cord Included: Yes Engine Heater Type: Threaded Immersion Show More Show Less
Compare Zerostart 400 Watt Engine Heater - 3100109 Part #: 3100109 Line: ZRO Zerostart 400 Watt Engine Heater 1 Year Limited Warranty Thread Size: M28 Cord Length (in): 60 Inch Voltage (V): 120 Volt Wattage (W): 400 Watt Amperage (A): 3.48 Amp Cord Included: Yes Engine Heater Type: Threaded Immersion Show More Show Less
Compare Zerostart 400 Watt Engine Heater - 3100124 Part #: 3100124 Line: ZRO Zerostart 400 Watt Engine Heater 1 Year Limited Warranty Thread Size: M28 Cord Length (in): 60 Inch Voltage (V): 115 Volt Wattage (W): 400 Watt Amperage (A): 3.48 Amp Cord Included: Yes Engine Heater Type: Threaded Immersion Show More Show Less
Compare Zerostart 600 Watt Engine Heater - 3100127 Part #: 3100127 Line: ZRO Zerostart 600 Watt Engine Heater 1 Year Limited Warranty Thread Size: 1-5/8 Inch Cord Length (in): 60 Inch Voltage (V): 115 Volt Wattage (W): 600 Watt Amperage (A): 5 Amp Cord Included: Yes Engine Heater Type: Frost Plug Show More Show Less
Compare Zerostart 300 Watt Engine Heater - 3400020 Part #: 3400020 Line: ZRO Zerostart 300 Watt Engine Heater 1 Year Limited Warranty Thread Size: 3/4 Inch Cord Length (in): 60 Inch Voltage (V): 120 Volt Wattage (W): 300 Watt Amperage (A): 4.17 Amp Cord Included: Yes Engine Heater Type: Clamp-On Show More Show Less