Limit Switches to fit A-dec® Chairs Base up function: Cascade® 1040, Decade® 1021/1020, 1010/1011, Priority 1005 & Performer® III Back up function: Priority 1005 Chair Limit Switch (A-dec® #044.184.01) Chair stop function: Decade® 1020/1021 & Priority 1005 A-dec®, Cascade® and Decade® 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.