Custom Whiskers & Windows Cat Door for Horizontal Sliding Windows Not Made in USA Self-framing aluminum tunnel installs in

Self-framing aluminum tunnel installs in walls 2" - 7 3/4" thick

Locking cover allows you to keep cats inside or outside when needed

note that the round logo flap will not work

If you are replacing a double flap

and closes smoothly by gravity (not motor)

Custom Whiskers & Windows Cat Door for Horizontal Sliding Windows Not Made in USA Self-framing aluminum tunnel installs inQuick and easy installation and removal with spring loaded frame Height is adjustable up to 3 inches to fit most horizontal sliding windows Non custom height ranges of 34 37", 43 46" and 46 49" can be found on the Whiskers & Windows Cat Door for Horizontal Sliding Windows page Durable horizontal sliding window pet door for Cats and Large Cats or very small dogs Custom orders are made to your specifications and are non returnable Approximately three