MODEL ELT817 P B/G 39" H x 21" W x 22" D 17.25" between the arms 17" clearance, 325 lbs capacity Wt. 30 lbs MODEL ELT820 P B/G 42" H x 21" W x 22" D 17.25" between the arms 20" clearance, 325 lbs capacity Wt. 30 lbs