Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook Power Fin Box Back Chinook Chinook Power Fin Box Product ID: 306 Brand: Chinook 2025-05-25 From: $41.99 AUD View or buy the Construction and Repair Parts Windsurfing Other - Chinook Power Fin Box from Chinook to discover other options and shipping details. Description The first choice by quality board builders. Power Box 1 bolt, box cut to size/shape at deck level Back to Windsurfing Other - Construction and Repair Parts More Construction and Repair Parts and others in our range Chinook Board Vent Retro Fit with slot Screw .625 inch Chinook Power Fin Box Slot Box Fin Box Chinook Footstrap Inserts 2 Hole Chinook 5-Hole Micro Adjustable Foot Strap Inserts Patrik 4-Hole Adjustable Foot Strap Inserts Chinook Board Vent With Thumb Screw 1 Inch Chinook 7-Hole Micro Adjustable Foot Strap Inserts Chinook Board Vent Retro Fit with Thumb Screw 5-8 inch Chinook Fin Box 8 inch