Endura Flap Thermo Sash 3E Pet Door

The Endura Flap Thermo Sash 3e installs, without the use of tools, into the track of your sash window. It features a beefy aluminum frame, Low-E glass, and the energy-efficient Endura flap pet door. The Endura Flap pet door is manufactured to be flexible, safe, and energy-efficient in all climates. The transparent, dual-pane flap seals tightly against the outside weather using a patented system of magnets. When closed, the flaps significantly reduce air conditioning and heat loss. All doors come with a locking cover and installation instructions.
Features
Dual-pane flap with magnetic closure