Guardian Ultra Source 12,500-Watt 26 HP Portable Generator 04451 (Discontinued by Manufacturer) 12,500-watt portable generator with industrial-grade design for heavy-duty home or commercial use 150% surge capacity to 18,750 watts; run-time up to 10 hours at half load Air-cooled 26 HP 760 cc V-twin overhead valve industrial engine; 16-gallon tank Includes electric start, electronic governor, starting battery, and pneumatic wheel kit Non-CARB Compliant/Not For Sale In California