The Patio Pacific Endura Flap IN Wall DOUBLE FLAP Dog Door are designed for installation into an Interior OR Exterior WALL..

Patio Pacific manufactured the Endura Flap to be the best performing four season, flexible pet door ever created.  The patented design is the best in quality, functionality, robustness, and overall superior to all other products - which the Endura Flap proves by having more awards than any other pet door on the market.

Whether you go with a single or double flap, Patio Pacific designed these durable pet doors to last forever; backed by an industry best 15 year warranty.

Benefits:

• Improve energy efficiency: Double flap design insulates your home, lowering energy bills and keeping your home comfortable in extreme temperatures
  
• Versatile installation: Designed for walls 4 1/2" - 7 1/2" thick, the telescoping tunnel adjusts easily to fit a variety of wall depths
  
• Durable and long-lasting: Black and white aluminum frame and polyolefin polymer flap withstand harsh climates, ensuring your pet door lasts for years
  
• Superior wind resistance: Strong magnets line the flap on three sides, resisting winds up to 50mph for a secure seal
  
• Flexible and safe flap: The Endura Flap is slightly more rigid than other flaps but remains a safe, soft, and flexible option for your pet
  
• Easy access for pets: The taller, narrower flap design accommodates both large and small pets, allowing them to share the pet door comfortably
  
• Secure when needed: The included ABS plastic locking cover as strong as 16 gauge steel that can be used on the inside or outside frame to block access when necessary
  
• Simplified installation: No more brackets or taping—just cut the hole, slide in the frames, screw the tunnels together, and seal
  
• Premium metal tunnel: The all-aluminum telescoping tunnel resists warping, weather, and wear, providing superior protection and a cleaner finished look
  
• Highly-engineered pet door flap: Designed to be the most advanced pet door flap available, ensuring your home stays insulated and your pets can easily access the outdoors

 Watch how to install an Endura Flap Wall Mount pet door.

12 reasons why the Endura Flap Pet Door is the best pet door in the world.

Endura Flap pet doors are so wind-resistant, they don't even flinch with a leaf blower.

How to adjust magnets on your Endura Flap pet door.

Product Specifications:

• Manufacturer - Patio Pacific Inc/Endura Flap
• Your Maximum Pet Size - Cats, Large Cats, Small Dogs, Medium Dogs, Large Dogs, X-Large Dogs
• Climate Suitability - Severe-4 Season
• Sealing Value - Very High
• Wind Resistance - Very High
• Self-Framing - Yes
• Frame Material - Heavy Extruded Aluminum
• Employs Patented “Endura Flap” - Yes
• Insulation Value - Very High, High
• Possible to Add Additional Magnets for Greater Wind Resistance - Yes
• Flap Material - Engage
• Flap Design - Single, Double, Flexible, Insulated Flap
• Flap Colors - Clear
• Flap Thickness - 7/8"
• Award Winning Design - Yes
• Replacement Flaps Available - Yes
• Flap Warranty (if separate) - 15 years
• Ability to Lock Flap - Separate Locking Cover-Loads from Top
• Locking Cover Material - Dimensional ABS
• Can Be Installed In - Walls, Kennel Wall
• Warranty Period - 15 years 

Sizing Chart:

To find the flap size door for your pet:

1. Cut a hole in a piece of cardboard that is the size of the flap you are interested in
2. Place the cardboard with the hole, in the opening of a door, then coax your pet through (use treats if necessary)
3. See what flap size and step over height (height from floor to bottom of where the flap will be installed) works best for your pet.

Note:  Larger Endura Flaps are not recommended for use by kittens or tiny dogs.  Cats have been successful using the Small #06, however a few have found the Medium #08 difficult to use. We would not recommend using the Large #10 or Extra Large #12 or any of the double flap versions for cats.

Sizing Information for Different Breeds:

*Breed Sizes
Breed sizes are examples only. It does not guarantee your pet will fit.  Please  measure your pet carefully, using the measurement guides, to ensure the flap size will fit them properly.

Number of Flaps 
1 - Single Flap - On inside frame (same side as locking cover) 
2 - Double Flap - One on each side. The included dead-air-space from the second flap adds significantly to the already considerable insulation and sealing capability. 

Watch how to install your Endura Flap Door Mount.