Endura Flap Thermo Panel 3e for Cats

Durable Aluminum frame (11.25 inches wide) with Low-E glass Most insulating kitty door for sliding glass doors Eliminates heating/cooling loss and drafts Comes in white, brushed aluminum, or bronze (black) Adjustable magnet strength promotes easy training How to Measure Your Track Height video guide The Thermo Panel Cat Doors for Sliding Glass Doors are the most energy-efficient cat doors on the market, resisting -40 degrees Fahrenheit temperatures and winds up to 50 mph. Most patio panel cat doors fall short of insulating effectively due to thin flap door designs. These pet doors include adjustable magnets to promote easier training. No matter the season, these sliding glass panels keep your home insulated year-round and provide freedom and independence for your cats.  If you have a monorail track you can order a monorail adapter to sandwich the pet door panel and monorail track for added safety and security. Features: Heavy-duty, extruded aluminum panel available in three sizes