Introducing the GP Factor side door window hatch for the Alu-Cab Alu-Cabin. This window hatch will fit all four doors on the 5.5FT Alu-Cabin, and the forward smaller doors on the 6.5FT Alu-Cabin. This is the perfect upgrade to your Alu-Cabin to add some natural light in on those days when you want to stay out of the elements. This kit includes a custom Lewmar Size 5 Hatch window finished in black to match the camper.