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Pet door vinyl sliding glass dog door in Size Small. Locking cover is included with purchase.
Endura Flap Vinyl sliding door dog door in Size Small. The most insulating dog door on the market.
Endura vinyl dog door for sliding door in Size Small. Spring loaded design and tension fit for a no tools installation.
This vinyl dog door for sliding glass door in Size Small can fit your kitty or small dog's needs.
Endura vinyl doggie door for sliding glass door in Size Medium. Included security cover is equivalent to 1/16" sheet steel.
Vinyl sliding glass door doggie door comes with different size options to fit you and your pet's needs.
The Endura Flap vinyl doggy door for sliding door withstands winds up to 50 miles per hour.
This vinyl doggy door for sliding door in Size Medium accommodates puppies the size of a Corgi.
The Endura Flap vinyl dog door sliding door is made with dual pane, low e glass for better insulation and UV protection.
Vinyl dog door sliding door in Size Large. The Endura Flap has a high aspect ratio for ease of use for your doggy or kitty.
Vinyl sliding door doggie door in Size Large. Locking cover secures your home and restricts pet access when needed.
This sliding door doggie door in Size Large can accommodate pets as big as as Labrador Retriever.
This vinyl sliding glass door with dog door utilizes temporary installation and is great for renters.
Vinyl sliding glass doggie door - the Endura Flap has adjustable magnet strength to allow easy training for you and your pet.
Share between pets of different sizes easily with high aspect ratio, allowing for low step-over heights even for the larger sizes.
The Endura Flap sliding door with dog door includes a 15 year warranty.
This pet door for sliding door in Extra Large can accommodate doggys as large as a Great Dane.
Vinyl sliding glass door with dog door built in has a flexible vinyl flap material that avoids cracking.
The Endura Flap vinyl dog door sliding glass has a 90 day return policy.

Endura Flap Vinyl Sliding Glass Dog Door

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  • Energy-saving design - insulates your home in cold and hot temperatures using dual-pane LoE glass and the award-winning Endura Flap pet door
  • Sliding glass door installation has strong Vinyl frame - compliments the look and securely fits in modern vinyl sliding glass door frame tracks
  • Keeps home cozy - pet door flap resist winds up to 50 mph and shields home against the harshest weather
  • No-tools installation - adjustable top for easy install and removal, great for renters and vacation homes!
  • Strong Locking cover - secures the pet door when you're away or you want to keep your pet inside or outdoors
Flap Size Flap Dimension Step
Stock No
Small #6 6" w x 11" h 4" 12 3/16"
Medium #8 8" w x 15" h 4" 14 3/16"
Large #10 10" w x 19" h 4" 16 3/16"
Extra Large #12 12" w x 23" h 4" 18 3/16"


Height Options

  • P: 74 ¾" - 77 ¾"
  • Q: 77 ¼" - 80 ¼"

 If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution

Don't think that the 12" width isn't enough unless you actually measure.  12" is Huge!  

Wondering how to measure your track? Review our Track Measuring Guide.



1 Piece Panel Pet Door

1-panel pet door

locking cover

1 sliding door clamp lock

1 center post weather seal draft stopper

1 foam weatherstrip

1 installation instruction booklet


The Endura Flap Vinyl Panel is the most insulating dog door on the market, designed specifically for vinyl-framed sliding glass doors of any size. Unlike other metal frames common among sliding glass door panels, the vinyl frame fits more comfortably in the track and matches the original vinyl of your sliding glass door. This semi-permanent pet door has a spring-loaded design, which means that no tools are necessary for installation. It safely secures the panel in place without making any permanent alterations, which is ideal for rentals and vacation homes! Engineered to withstand -40 degree weather and 50 mph winds, the magnets that line the flap ensure the utmost energy efficiency and keep the flap sealed during rough weather. The vinyl panel also features dual-pane, Low-E glass, which blocks harsh light without compromising the amount of natural lights coming in.



  • Pet flaps range from small“extra large
  • Fits into existing 1 ½ - 1 ¾ thick track of your vinyl door, occupying space in the door opening
  • Vinyl Panel comes in three adjustable track height ranges:
    • 74 ¾ - 77 ¾
    • 77 ¼ - 80 ¼
  • Quality of flap ensures that it stays flexible in extreme temperatures
  • Magnets withstand drafts, leaks, and heavy wind
  • Flexible flap swings on a rod at the top to avoid cracking and flexing
  • Includes a secure locking cover
  • 90-day return policy and a 15-year warranty



  • Vinyl frame applies seamlessly into the track for a highly insulating fit
  • The panel can be removed at any time with the semi-permanent, spring-load design
  • Steer clear from cutting holes or making any permanent changes to your door
  • Comes in white to match the interior design of the existing sliding glass door
  • Sturdy locking cover allows you to secure the door when necessary
  • Gives dogs the freedom to access the outdoors without needing you to let them out
  • Structurally sound design is built to last


Need help installing? Check out our Vinyl Sliding Glass Door Installation page.


Installation video

Endura Flap® Pet Door Warranty

To the original purchaser, Endura Flap® Pet Doors warrants this product and all of its component parts to be free of defects in materials or workmanship for a period of 15 years from the date of delivery to the customer.

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 Endura Flap® Pet Doors together with proof of purchase, will be repaired or replaced and returned to the customer free of charge.

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