Product Info Catalog Building Materials Windows Screen Accessories 1-1/4 x 72-Inch Mill-Finish Aluminum Bottom Triple Track Window Frame 1-1/4 x 72-Inch Mill-Finish Aluminum Bottom Triple Track Window Frame Request a Quote UPC: 49793141927 Manufacturer: Prime Line Products SKU: 879924 Model Number: PL 14192 1-1/4" x 72", Mill Finish, Aluminum Bottom Triple Track Window Frame, Use With #PL14189 Side & Top Window Frame, #PL14964 Corner Keys & #PL15130 Tilt Key.