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Portable Generators.

GUARDIAN's Ultra Source® portable generators are the most powerful portable generators on the market and offer the best value in the business. They supplement our complete line of residential and commercial automatic standby generators and are ideal for power on the job site or as an emergency source of electricity at home or in commercial applications such as gas stations.

Impressive Power

Our 15,000-watt and 17,500-watt models feature our own OHVI® 992cc industrial grade engine. This powerhouse is renowned for its reliability, long life, impressive power and smooth, quiet operation.

Model
Brand
Series
K-Watts
Gas (NG/LP/UL)
Switch
Cooling
4582
Guardian
UltraSource
15
UL

Air
4583
Guardian
UltraSource
17
UL
Included
Air