PetSafe Extreme Weather Pet Door for Doors - Medium 

The first dog door to include 3 flaps for extra protection! Install yourself, too!

• Three flap system that provides better insulation against the extreme elements - wind, rain and temperature!
• Energy savings amount to 3.5x more than single flap pet doors
• Snap-on weather shield provides even more insulation and protection and doesn't interfere with door knobs like other top loading covers
• Features "Do-it-Yourself" instruction
• Strong magnetic hold runs the width of the flap to ensure proper closure
• Fits standard doors 1-1/2 to 2 inches thick

The first ever pet door to include three flaps, the Extreme Weather Pet Door combines the traditional vinyl flaps with a stronger, more durable middle flap. The bottom is sealed shut by a powerful magnetic system that runs the width of the flap. 

Flap Size: 8 1/8 x 11 3/4 inches

Outside Frame: 10 5/8 x 15 1/8 inches

Fits Doors Thickness: 1 1/2 x 2 inches

Cut-out dimensions are included for easy installation

Great for pets up to 40 lbs

Warranty  PetSafe warrants to the original retail consumer purchaser, and not any other purchaser or subsequent owner, that its PetSafe product, when subject to normal and proper residential use, will be free from defects in material or workmanship for a period of one (1) year from the purchase date.