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Flap Size: Small
|Flap Size: Medium ||$42.90|
|Flap Size: Large ||$46.90|
|Flap Size: Extra Large ||$52.90|
Thermo Sash 3e Pet Door for Windows
You will not find better insulation and durability than with the Thermo Sash 3e with Endura Flap. The spring-loaded design fits windows of practically any width, and is perfect for a temporary no tools or even year round semi-permanent installation. This is by far the premier choice for window pet doors in the most extreme conditions, and we prove it by backing it with a 15 year warranty!
Features of our Thermo Sash 3e
- The Endura Flap featured with this door is one of the best engineered high performance pet doors ever made. Magnets on the bottom and up and down the length of both sides give it a superior seal, while allowing you to adjust them for training purposes.
- Dual pane LoE insulated glass pairs perfectly with the newer energy efficient windows and doors used in new construction and renovated homes.
- Four different flap choices have a high aspect ratio, meaning they are taller and narrower to better fit more pets.
- With a spring loaded adjustment panel it can be installed and removed in seconds without the use of any tools.
- It has adjustment ranges to fit window widths from 22’ - 43”, and if that doesn’t include yours we can even make it custom!
- We include a draft stopper and weather stripping for extra protection from the elements.
- The sturdy aluminum framing is available in White, Satin, or Bronze.
- It is designed, engineered and manufactured in the USA. Check out our detailed Efficiency Study and see what makes us the best!
Perfect Time for a Thermo Sash 3e
- Hands down the best sash window door on the market for severe situations, whether it’s wind, rain, snow, or heat.
- The adjustable magnet strengths makes training your pets much easier, so if you have smaller or slightly timid dogs and cats no need to worry.
- Temporary install makes it great for renters and vacation homes.
- The Thermo Sash is a pet door you can fully depend on, with the flap lasting years even with constant use.
- The flap sizes of this doggy or cat door can accommodate multiple pets, from small to large and any sharing in between.