Ideal Pet Products Aluminum Sash Window Pet Door, Adjustable to Fit Window Widths from 33″ to 38″, 10-1/2” x15” Flap Size Price: $197.00 (as of 10/01/2023 07:15 PST- Details) & FREE Shipping.

High quality white finish aluminum construction installs easily into most aluminum sash window styles
Flexible flap is made of clear vinyl to allow pet to see through opening and is non-toxic for added safety
Recommended for pets 36 to 90 Pounds