Your Alpha CMX canopy is also fitted with a sponge bulkhead seal that seals the trucks bulkhead area (Under the cab window)
see: Bulkhead foam seal for Alpha CMX click here
To see the full range of Alpha Canopy spare parts see: Alpha Spares
Alpha GSE Hardtop Fixed LH Side Glass - L200 2005-2014 Curved Bed
Alpha Type E Right Hand Side Pop Out Window Glass - Various Vehicles