The 16" Oscillating Pedestal Fan features a 3-speed 1/20HP motor with rear mounted rotary controls and a 7' white power cord. The grills are constructed of a powder coated steel from grill with an impact resistant plastic rear grill. Fan height is adjustable from 36" to 52". Dimensions: 18"L x 18"W x 52" | Weight: 11.30 lbs. The 18" Oscillating Pedestal Fan features a 3-speed 1/20HP motor with rear mounted rotary controls and a 7' white power cord. The grills are constructed of a powder coated steel front grill with an impact resistant plastic rear grill. Fan height is adjustable from 37" to 53.75". Dimensions: 20.25"L x 20.25"W x 53.75" | Weight: 13.80 lbs.