Pet Door Guys - "In The Glass" Flap Size:Large The dual-layer flap creates a

The dual-layer flap creates a trapped air space that helps reduce heat transfer

using two latches helps maintain even pressure across the cover

Quick and Easy UpgradeInstallation is straightforward and does not require permanent changes

There are two custom step-over heights available:

Pet Door Guys - "In The Glass" Flap Size:Large The dual-layer flap creates aThe Pet Door Guys In The Glass Pet Door is engineered to replace one insulated glass panel within your existing sliding glass door, French door, or sidelight. Rather than adding a framed insert, this solution maintains the original door frame and preserves the visual continuity of your home. Each unit is constructed with tempered dual pane glass filled with argon gas for insulation and includes a factory installed Endura Flap. Optional Low E or tinted