Air Channel Classic (7,402 sq. ft.) Air Channel Classic (12,222 sq. ft.) Bio Cushion Classic (9,639 sq. ft.) Mach 1 (7,465 sq. ft.) Mach 1 (10,283 sq. ft.) Air Channel  Classic (6,656 sq. ft.) Air Channel Classic (7,800 sq. ft.) Mach 1 CS (8,044 sq. ft.) Air Channel Classic (10,300 sq. ft.)