Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair Parts8 inch Mast Track Box Back Surf Sail Australia 8 inch Mast Track Box Product ID: 594081 Brand: Surf Sail Australia 2026-11-27 From: $29.99 AUD View or buy the Construction and Repair Parts Windsurfing Other - 8 inch Mast Track Box from Surf Sail Australia to discover other options and shipping details. Description The first choice by quality board builders, 8 inch box Vent valve and vent screw not included. Recommeded use with "Surf Sail Australia Chromed Brass Vent Screw" Back to Windsurfing Other - Construction and Repair Parts More Construction and Repair Parts and others in our range Slot Box Fin Box Chinook 7-Hole Micro Adjustable Foot Strap Inserts Chinook Mast Track Box 10 inch Patrik Vent Screw Insert Fin US Box 8 inch Chinook Gor Tex Vent Valve Chinook Slot Box Fin Box Chinook Power Fin Box Patrik 4-Hole Adjustable Foot Strap Inserts Chinook 8 inch Mast Box Vented w screw