Thermo Sash 3e Cat Door for Sash Windows

Insulating pet door designed for sash windows 3/16" clear safety glass ensures energy efficiency Sturdy aluminum frame available in white, brushed aluminum, and bronze color options Easy installation with a spring-loaded design, ideal for renters and vacation homes Included Locking Cover and complete magnetic seal for security and weather resistance Panels less than 22" will have plexiglass  Perfect for sash windows: Thermo Sash 3e Cat Door is designed specifically for vertical sliding sash windows. For horizontal sliding windows, check out the window panel.  Energy efficient: 3/16" clear safety glass reduces energy loss, pairing well with energy-efficient windows High-quality materials: Aluminum frame ensures durability and longevity, with a choice of three colors to match your window and home decor Flexible installation: Adjustable to fit window widths, with a minimum track width of 1" Quick and easy setup: The spring-loaded design allows for installation and removal in seconds, no semi-permanent changes required Weather resistant: Insulating flap with a magnetic seal withstands winds up to 50mph, and remains flexible in temperatures from -40°F to 110°F Secure your home: Locking Cover made of molded ABS plastic ensures your home and cat's safety Extra insulation and weather resistance: Draft stopper and weatherstripping included for added protection against the elements Suitable for various climates: Severe 4-Season Climate Suitability makes it perfect for year-round use Made in the USA: Quality and craftsmanship you can trust Cats love it: Easy to learn and use, keeping your cat happy and independent Five-minute installation: Hassle-free setup means more time to enjoy the benefits of your new cat door Customizable: Flap can be switched from left to right to accommodate your specific needs Supports window modification: Steps or ramps can be added for elevated windows, ensuring easy access for your cat Lifetime warranty: Purchase with confidence, knowing your investment is protected Need help Installing? Take a look at our Thermo Sash Installation page.