PetSafe HPA11-10918 Wall Entry Pet Door

Highlights:

• Frame Dimeter: 9-1/4″ x 13″ ?C Cut Out: 6-3/4″ x 10-1/16″
• Flap Open: 5-1/4″ x 7-1/2″
• Wall entry
• Small for up to 15 Lb. Dogs
• Double-flap system insulates for energy efficiency
• Aluminum frame with durable plastic telescoping tunnel
• Can be installed in interior or exterior walls or doors 4-3/4″ to 7-1/4″ thick, including siding, stucco, and even brick
• Add an extension tunnel for deeper walls
• Features 2 flaps, one in the inner frame and one in the outer frame