Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook 10 inch Mast Box Vented With Screw Back Chinook Chinook 10 inch Mast Box Vented With Screw Product ID: 324407 Brand: Chinook 2024-12-22 From: $37.99 AUD View or buy the Construction and Repair Parts Windsurfing Other - Chinook 10 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 Slot Box Fin Box Chinook Fin Box 10 inch Fin US Box 8 inch 8 inch Mast Box Vented 5 Hole Footstrap Inserts Chinook Mast Track Box 10 inch Slot Box Fin Box Chinook Power Fin Box Chinook 8 inch Mast Box Vented With Screw Patrik Vent Screw Insert