These Hale pet door models are for use with windows up to 60". If your window is larger, you may want to consider the Hale Patio Panel Pet Doors.

Hale Omni Horizontal Sash Pet Door:

1. Determine the overall height "A" of the window from the inside of the bottom window track to the inner face of the top window frame. Please measure carefully.
2. Measure the width of the window track "C". Your window track should be 7/8" or larger.

Hale OptiView Horizontal Sash Pet Door:

1. Determine the overall height "A" of the window from the inside of the bottom window track to the inner face of the top window frame. There is only a 1" adjustment area on this model. Please measure carefully.
2. Measure the width of the window track "C". If you are ordering a single pane OptiView window, your window track must be 11/16" or larger. If you are ordering a double pane OptiView window, your window track must be 7/8" or larger. If this is not the case, please order one of our other two window models.

Hale Spring Tech Horizontal Sash Pet Door:

1. Determine the overall height "A" of the window from the inside of the bottom window track to the inner face of the top window frame. Please measure carefully.
2. Measure the width of the window track "C". Your window track should be 7/8" or larger.