ENERGY EFFICIENT POWER PET PATIO PET DOOR INSERTSPower Pet patio door inserts are the best built patio pet doors made. They are built from heavy gauge aluminum with double pane tempered Low-E glass with all stainless steel hardware. They come complete with a fully installed Power Pet automatic pet door. The panel quickly and easily inserts into your sliding glass door track. In minutes your pooch or kitty has access to its own fully automatic electronic pet door.