ThermoPlastic pet door features inner telescoping frame that adapts to doors of 1-1/4 In

to 2 In

thickness

Includes impact resistant super-strong thermoplastic, clear vinyl flap with patented edges won't warp from use or extreme temperatures, and floating bottom threshold for seal

Lock-out slide keeps pet out of mischief when unsupervised

Features tamper-proof mounting so the door cannot be removed from outside

Easy installation - average installation time is 20 minutes

How to select the right pet door: Step 1: Measure your pet from the top of the shoulders to the chest, just behind the front legs

Step 2: Determine your pet's weight

Step 3: Select the correct door size based on your pet's measurements and weight