Upper window allows for ventilation in multiple positions. 

• White.
• Includes a tempered glass with frame that measures 25 11/32" wide by 27 3/16" tall.
• Fits doors 1" thick, 36" and 34" wide or custom rough opening widths for 33 1/4" - 38 3/8" and heights 75 - 84 7/8" .
• Instructions included.