Belimo KH12 SKU: KH12 $24.75 $55.00 Quantity -+ Add to Shopping Cart In Factory Stock Details Belimo KH12 : Universal Crank Arm Slot width 21/64" (8.2mm) For Damper Shafts 3/4" to 1" diameter (20-25mm) Data Sheet DetailsData Sheet Back Belimo KH12 : Universal Crank Arm Slot width 21/64" (8.2mm) For Damper Shafts 3/4" to 1" diameter (20-25mm) Back