Ideal Pet Products Deluxe Aluminum Pet Door with Telescoping Frame, Super Large, 15" x 20" Flap Size, White

Strong aluminum frame pet door that installs in doors from 1/2" to 1-3/4" thick | Includes a clear vinyl flap with patented edges that wont warp from use or extreme temperatures and a Spring-loaded Lockout Slide feature to keep your Ideal Pet in or out. | Pet door cutout size is 15-1/2" x 22-3/8" | Comes with everything you'll need: all hardware, template, and easy-to-follow instructions | Recommended for pets 91 to 120 Lbs.