Shop / Hoist Parts / Challenger 30mm Knob “Emergency Push Botton” has been added to your cart. View cart Challenger 30mm Knob$4.03 In stock Challenger 30mm Knob quantity Add to cart SKU: TH-3W-01-22 Category: Hoist Parts Related products Overhead Hose 278″ $319.88 Add to cart Buttonhead Screw 10×16 $23.18 Add to cart 3/8″ Spring $4.03 Add to cart Long Hydraulic Hose 12K $212.91 Add to cart