Free U.S. Shipping & Lifetime Warranty For All Endura Flap Pet Doors

Endura Flap Severe Weather Vinyl Sliding Glass Door - Replacement Flap Instructions

Installation Instructions

Click to view the Single Flap Vinyl Sliding Glass Dog Door Replacement Flap Instructions.

Installation icon Difficulty Easy
Installation icon Steps 05
Installation icon Time Required 0.5 Hours
Installation icon Sections 03
Installation icon Flags 01


  • 1 Replacement Flap
  • 3 Retainer Rings


  • Flat Head Screwdriver
  • Magnetic Phillips Head #2 Screwdriver

Step 1 Remove the Screws

  • Use the Phillips Head #2 screwdriver to remove the four screws from the pet door frame.
  • Remove the entire flap assembly from the panel.

Step 2 Remove the Rod

  • Look for a metal rod at the top of the flap frame—remove one of the circular metal retaining rings by forcing it off with a flathead screwdriver.
  • You only need to remove one retainer ring.
  • Push the metal rod through the flap frame until it comes out on the other side. Pull the rod out and remove the flap.

Step 3 Install the New Flap

  • Position the new flap in place in the frame and make sure the magnets are attracting correctly. If they are not, try flipping the flap around (switching the interior and exterior faces).
  • Sometimes the bellows (accordion-like sides of the flap) contract during shipping and prevent the magnets from attracting. To fix this, remove the pivot washers from the top corners of the flap and use a blow dryer to lightly heat the bellows and stretch them back out.

Step 4 Reinstall the Rod

  • Guide the rod through the flap and frame.
  • If you removed a retainer ring, put a new one on by holding the other side of the rod in place while pushing the ring on with your fingers.
  • Each side only needs one ring, and the teeth need to be bent facing away from the flap. If you’re having difficulties putting the new ring on, try flipping the ring around so the teeth are facing the opposite direction.

Step 5 Reinstall the Flap Assembly

  • Reinstall the flap assembly into the panel.
  • Line the holes up so you can see light through them, then screw them into place.
  • Do not overtighten.