Stool Cylinder Doctor Stool Cylinder, 45mm Dia. (A-dec® #65.0227.00, P&C # 041789, Marus 75R088) 17” Fully Extended, 5.5” Travel Replaces 24V Volt/150 Watt bulbs in older 6300 lights A-dec® is 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.