Product Info Catalog Building Materials Windows Screen Accessories 5/16 x 1-5/16 x 72-Inch White Bottom Window Frame 5/16 x 1-5/16 x 72-Inch White Bottom Window Frame Request a Quote UPC: 49793159731 Manufacturer: Prime Line Products SKU: 123629 Model Number: PL 15973 5/16" x 1-5/16" x 72", Powder Coated White Finish, Bottom Window Frame, For Triple Track Window Frames, Drop In Style.