PetSafe MPA11-12020 Wall Entry Kit Smartdoor Large

It consists of a two-piece molded frame with a protective outer lip.

Features:

• 28.17" x 20.53" x 3.69"
• Frame is impact and UV-resistant with telescoping option
• Fits walls 4.75"-7.25" thick

Includes:

• Outside frame and tunnel
• 20 wood screws and 12 washers
• Cut-out template
• Installation instructions