• 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 . 
  
• 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: and 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 page.