Limit Switches to fit A-dec® Chairs Chair stop function: Cascade® 1040, Decade® 1021 "after 6-1998" and Performer® I & II Chair Limit Switch (A-dec® #044.183.00) A-dec®, Cascade®, Decade® and Performer® are a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.