PetSafe Large Extreme Weather Pet Door, White

ENERGY EFFICIENT: Unique three-flap system is rated 3.5 times more energy efficient than single flap doors CENTER INSULATED FLAP: Perfect for hot and cold climates; keeps the warm and cool air inside your home CONTROLLED ACCESS: Snap-on closing panel allows you to keep your pet from using the pet door; use a second closing panel (sold separately) on the outside for an additional layer of weather protection MATCH YOUR DÉCOR: Paintable plastic frame allows you to match your door color. Frame Dimensions- 12 1/2 x 19 7/8 Inches. Cut Out- 11 3/8 x 19 Inches EASY INSTALLATION: Includes detailed instructions, cutting template and installation hardware for an easy do-it-yourself project.PET SIZE: Recommended for pets up to 100 lb.; pet door flap opening measures 10.125 in. W x 16.25 in. H.EXPERIENCE: PetSafe brand has been an industry leading U.S. manufacturer of pet behavior, containment and lifestyle products since 1991, helping millions of people and pets each year