Endura Flap Double Flap Pet Door for Door Installations , Stylish for Interior & Exterior Doors , Durable Aluminum Frame & Weatherproof Dual-Layer Flap , White, Large, Double Flap

DURABLE & WEATHER RESISTANT: the Endura Flap double flap pet door is designed with a high-quality aluminum frame and an insulated flap that remains flexible in extreme temperatures, providing excellent weather resistance and energy efficiency for your home; large flap measure 10" x 18" and is suitable for pets up to 27" tallVERSATILE INSTALLATION: our pet door is suitable for a wide range of doors, including solid core, hollow core, metal, and storm doors, and is available in four sizes to accommodate pets of all sizes; pet door is designed to fit doors between 1-5/8" to 2-3/8" thickEASY INSTALLATION & SECURE LOCKING: The pet door comes with easy-to-follow instructions and a heavy-duty locking cover, strong as 1/16" steel sheet, ensuring secure closure when not in use; ideal for interior and exterior door installationsADAPTABLE TO YOUR PET'S NEEDS: the three-sided magnet design of the Endura Flap pet door is adjustable for training timid pets, while providing the strength you need to keep the wind out; flaps are rated to stay shut in gusts of up to 50 mphBUILT FOR LIFE: our pet doors are manufactured in the USA with quality construction and backed by a lifetime warranty; invest in a reliable, long-lasting pet door that will serve your pet's needs for years to come