Endura Flap Pet Doors for Walls are manufactured in the USA to be flexible， safe， and energy efficient in all climates. Translucent， dual-pane flaps seals tightly against the outside weather using a patented system of magnets. This pet door has two， dual-layered flaps (outside frame and inside frame) for superior energy efficiency. When closed， the flaps significantly reduce air conditioning and heat loss and withstand winds up to 50 mph. Each unit permanently installs into your wall， up to eight (8) inches thick and includes a locking security panel. Comes with: Interior and exterior frame， aluminum wall tunnel， security panel， mounting hardware and installation instructions.  Available in three colors:  White， Black and Tan.  15 year warranty!

Product Features:

• Engineered to be the best wall mount  pet door on the market
• Double flap options to increase insulation for maximum energy efficiency
• Flap utilizes magnetic seaing on three sides keeping it closed in gusts up to 50mph
• Aluminum tunnel adjusts to fits walls up to 8" thick
• Most reliable pet door on the market， backed by a 15 year warranty