WHCA-240-0251 Length: 251" Features: -Snow melt cable.-Prevent accumulation of snow or shoveling after overnight snowfalls.-Energy efficient twin-conductor heating cable.-Installs in asphalt, concrete or under pavers in mortar.-Perfect for driveways, patios, walkways and stairs.-For outdoor use.-Volts: 240.-UL and CSA certified.-85.5": 1032" H, 6.05 lbs.-128": 1536" H, 7.9 lbs.-171": 2052" H, 9 lbs.-188": 2256" H, 9.8 lbs.-251": 3012" H, 12 lbs.-342": 4104" H, 17.15 lbs.-376": 4524" H, 18.8 lbs.-428": 5136" H, 21.2 lbs. Specifications: -85.5": 1001 Watts, 4.2 Amps.-128": 1500 Watts, 6.3 Amps.-171": 1999 Watts, 8.3 Amps.-188": 2251 Watts, 9.4 Amps.-251": 3000 Watts, 12.5 Amps.-342": 4001 Watts, 16.7 Amps.-376": 4500 Watts, 18.8 Amps.-428": 5009 Watts, 20.9 Amps. Warranty: -Manufacturer provides 10 years warranty.