Briggs & Stratton 40415 17kW 3-Phase Standby Generator, Gray Closer placement options as close as 18 in. from your home per the National Fire Protection Agency 37 standard Built from the Galvanneal steel used in the automotive industry for long-term durability Rated for operation in areas with low natural gas pressure, can operate at 3.5 in. to 7 in. water column Comprehensive 5-year parts, labor, and travel limited warranty