Ideal Pet Products Aluminum Sash Window Pet Door, Adjustable Price: $176.64 (as of 12/06/2022 23:49 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