Product Details
Sizing & Fit
Installation Guide
FAQs
Reviews
Flap Dimensions:
6"w x 11"h
The entry way your dog goes through.
Height To Raise Window:
18 1/2"
How high you must raise your window in order to fit the panel into the track.
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Endura Flap Custom Thermo Sash 3e Pet Doors for Sash Windows
44
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$802.00
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- Insulating sash window insert with built-in pet door
- Suitable for windows 22" - 43" in width, with 1" thick track
- Features 3/16" clear safety glass which is 59% thicker than the standard for enhanced durability and increased energy efficiency
- Easy installation and semi-permanent, ideal for renters
- Locking cover included that loads from the top
- Video to explain how to measure sash window track width
- Extra Large Flap 22" - 25" Width Panel is made with plexiglass
Size & Measurement Guide
Endura Flap Custom Thermo Sash 3e Pet Doors for Sash Windows
Regular price
From
$802.00
Unit price
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Product Details
The Endura Flap Thermo Sash 3e Pet Door for Sash Windows provides your pets with the freedom to come and go while maintaining your home's insulation and energy efficiency. This sash window insert features a built-in pet door, combining the elegance of a sleek frame with the reliability of a weatherproof, insulating panel.
The Endura Flap Thermo Sash 3e is designed to fit snugly into the track of most windows, with sizes available for windows ranging from 22" to 43" in width and at least 1" thick track. The easy-to-install, spring-loaded design ensures a secure fit without the need for permanent installation, making it an excellent choice for renters and vacation homes.
Crafted with a heavy extruded aluminum frame, the Thermo Sash 3e is available in white and dark bronze, blending seamlessly with your existing window.
The heart of the Thermo Sash 3e is the flexible polyolefin polymer flap, designed to remain functional in temperatures as low as -40°F. Lined with magnets along the edges, the flap offers superior sealing, remaining shut during heavy winds and extreme weather conditions.
For added security and insulation, a locking cover and weather stripping are included with the Thermo Sash 3e. The product also comes with a 90-day return policy and a lifetime warranty, giving you peace of mind in your investment.
Please note that the Extra Large Flap 22" - 25" Width Panel is made with plexiglass, custom-made-to-order, and non-returnable.
Features:
- Heavy extruded aluminum frame in white and dark bronze
- Flexible polyolefin polymer flap, functional in temperatures down to -40°F
- Superior sealing with magnets lining flap edges
- Locking cover and weather stripping included for enhanced insulation
- Lifetime warranty and 90-day return policy
- Sizes to fit windows from 22" - 43" in width and at least a 1" thick track. Customized sizes available
Benefits:
- Sleek frame and color variety are complementary to many windows
- The flexible flap is easy for pets to use
- Polyolefin polymer flap is pet and environmentally friendly
- Accommodates both dogs and cats
- Multiple pets can use the door due to its taller and slimmer design
- Temporary/semi-permanent installation is perfect for renters and vacation homes
- Keep your pets inside or out with the locking cover
- Gives pets the ability to come and go when they please
Sizing & Fit
Size Chart
- Small 6"w x 11"h
- Medium 8"w x 15"h
- Large 10"w x 19"h
- Extra Large 12"w x 23"h
Flap Dimensions:
8"w x 15"h
The entry way your dog goes through.
Height To Raise Window:
22 1/2"
How high you must raise your window in order to fit the panel into the track.
Flap Dimensions:
10"w x 19"h
The entry way your dog goes through.
Height To Raise Window:
26 1/2"
How high you must raise your window in order to fit the panel into the track.
Flap Dimensions:
12"w x 23"h
The entry way your dog goes through.
Height To Raise Window:
30 1/2”
How high you must raise your window in order to fit the panel into the track.
| Flap Size | Flap Dimension | Outside Frame Dimension | Recommended Pet Height |
|---|---|---|---|
| Small | 6"w x 11"h | 18 1/2" | 9" - 15" |
| Medium | 8"w x 15"h | 22 1/2" | 9" - 21" |
| Large | 10"w x 19"h | 26 1/2" | 9" - 27" |
| Extra Large | 12"w x 23"h | 30 1/2” | 9" - 34" |
Do not know which size to get? Here is a measurement guide to help you out
Customer Reviews
4.8 Based on 44 Reviews
Write a Review Ask a Question - Reviews
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S
12/22/2023
Scott
United StatesBest Pet Door made specifically for your window size
The Endura Flap Thermo Sash is the most insulating pet door on the market with the best warranty. This custom-made option if perfect for those homes with windows that are not a common size. Once you receive it, it is easy to install and remove.
JC
02/19/2023
Julie C.
Fantastic customer service
Our first door was the wrong color. We contacted customer service and a new door was sent out. We had it within in just a couple days. We installed it a couple of days ago. It fits perfect and the directions were great. It looks great. Thanks for all your help.
PF
10/27/2022
Phoenix F.
Very effective
Works well, easy to install, keeps the cold air out. My only complaint is how loudly the flap shuts. I installed it in my bedroom (the only window that is close to the ground)…and it wakes me whenever my kitty goes in or out.
JC
07/06/2022
Jim C.
Endura Flap Thermo Sash 3e Pet Doors for Sash Windows
Fits and Works great
SM
05/30/2022
Sue M.
Wonderful!
It was extremely easy to install, and our puppy knew just what to do…he could barely wait for me to finish installing. We wish we had thought of this years ago. The window is in our walk-out basement and allows hime to safely go outside to a kennel we put up outside the window.
