Advent ACM150 Rooftop Air Conditioner, White, 15000 BTUs, 115 Volt AC Power, Three Fan Speeds Installs; Premium, Thick, Watertight Vent Opening Gasket with Six Dense Foam Support Pads 15,000 BTUs, 115 Volt AC power Rigid, metal constructed base pan Premium, thick, watertight vent opening gasket with six dense foam support pads Three fan speeds Installs in standard 14.25" x 14.25" vent opening Made from high-grade materials using the latest technology