Thermo-Sash 3e™ Sash Window Pet Door
Key product features:
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Exclusive - Every Thermo-Sash 3e™ includes the award-winning Endura Flap™ pet door flap - the best engineered high performance pet door flap ever made. Take a look at the Endura Flap Design Criteria used to develop this awesome flap. You don't want a leaky flap!
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Exclusive -The Endura Flap™ is guaranteed for 15 years.
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Exclusive -The Endura Flap™ won the coveted Fancy Publications Editors Choice for 2007.
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Dual Pane, Insulated Low "E" Glass is the highest performing glass available. It is standard on the Thermo-Sash 3e™. This glass unit is guaranteed for 10 years.
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Spring Load design can be installed and removed in seconds. No Tools installation.
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Exclusive -Built-In anti-whoops allows for 3/4" change in adjustment range to allow for small measuring errors.
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Draft Stopper - Keeps air from coming in between the two windows.
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Adjustment Ranges accommodate windows 22" - 43" wide in 3" increments. Be sure your track width is at least 1".
- 100% Designed, engineered and manufactured in the U.S.A.
There has been lots of discussion as to why the Endura Flap is such a high performing pet door. For engineers or those looking for some more technical information here is a 74-page dog door energy efficiency study showing what makes it so special.
Note: Endura Flaps™ are not recommended for use by kittens or tiny dogs.
Sizing Information - Click Sizes Below to See Product Page
The easiest way to test flap size for your pet is to cut a hole in a piece of cardboard that is the size of the flap you are interested in, then coax your pet through (use treats if necessary). Place the cardboard in the opening of a door so they have to walk through the hole to get to the reward! See what flap size works best for your pet.
(Need help finding the best size? Call or e-mail us and we'll help you find the right size for your cat or dog!)
Click on the Sizing & Measuring tab for more details on how to measure the right size for your pet.
Flap Size |
Flap Dimension |
Height to Raise Window |
Stock No |
Small #6 |
6" w x 11" h |
18.5" |
07PPC06 |
Medium #8 |
8" w x 15" h |
22.5" |
07PPC08 |
Large #10 |
10" w x 19" h |
26.5" |
07PPC10 |
Extra Large #12 |
12" w x 23" h |
30.5" |
07PPC12 |
Adjustment Ranges
- 22"-25"
- 25"-28"
- 28"-31"
- 31"-34"
- 34"-37"
- 37"-40"
- 40"-43"
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Important Note
All Extra Large and 22"-25" adjustment range sales are final, no return. Please simulate the opening (open the window, use duct tape to simulate the opening) to be sure this size is appropriate before ordering.
Our normal return policy applies to Small, Medium and Large sizes as well as all other adjustment ranges.
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To see the Installation Manual - Click Here
Patio Pacific Inc Endura Flap™ Pet Door 10 Year Comprehensive Warranty
To the original purchaser, Patio Pacific Inc warrants this product and all of its component parts to be free of defects in materials or workmanship for a period of 10 years from the date of delivery to the customer.
Endura Flap™ assemblies employed in commercial kennels are warranted for a period of 3 years. Damage caused by accident, improper installation, abuse or normal wear, including damage by pets or glass breakage is specifically excluded from this warranty.
Defective materials returned to Patio Pacific Inc, together with proof of purchase, will be repaired or replaced and returned to the customer free of charge.
Pet doors of other manufacturers installed in Patio Pacific products are covered by the warranty of the other manufacturer and not by Patio Pacific Inc.
Product Details
- Manufacturer - Patio Pacific Inc
- Your Maximum Pet Size - Cats, Large Cats, Small Dogs, Medium Dogs, Large Dogs, X-Large Dogs
- Type of Window - Sash (Up & Down)
- Climate Suitability - Severe-4 Season
- Sealing Value - Very High
- Wind Resistance - Very High
- Frame Material - Heavy Extruded Aluminum
- Employs Patented “Endura Flap” - Yes
- Insulation Value - High
- Possible to Add Additional Magnets for Greater Wind Resistance - Yes
- Flap Material - Engage
- Flap Design - Single, One Part , Flexible, Insulated Flap
- Flap Colors - Clear
- Flap Thickness - 7/8"
- Award Winning Design - Yes
- Replacement Flaps Available - Yes
- Flap Warranty (if separate) - 15 years
- Dual or Single Pane - Dual Pane
- Low “E” Coating - Yes
- Ability to Lock Flap - Separate Locking Cover-Loads from Top
- Locking Cover Material - Dimensional ABS
- Can Be Installed In - Sash Windows
- Warranty Period - 10 years