Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook 8 inch Mast Box Vented With Screw Back Chinook Chinook 8 inch Mast Box Vented With Screw Product ID: 302 Brand: Chinook 2024-12-25 From: $33.99 AUD View or buy the Construction and Repair Parts Windsurfing Other - Chinook 8 inch Mast Box Vented With Screw from Chinook to discover other options and shipping details. Description The first choice by quality board builders, 2 sizes 8 inch and 10 inch, built in vent screw Back to Windsurfing Other - Construction and Repair Parts More Construction and Repair Parts and others in our range Chinook Footstrap Inserts 2 Hole 8 inch Mast Box Vented Chinook Vent Thumb Screw Chinook Power Fin Box Chinook Mast Track Box 10 inch Chinook Mast Track Box 8 inch Chinook Board Vent Retro Fit with slot Screw .625 inch Chinook Footstrap Inserts 5 Hole Chinook 10 inch Mast Box Vented With Screw Chinook 3-Hole Micro Adjustable Foot Strap Inserts