Newest Energy-Efficient Pet Door Keeps the Hot and Cold Weather Out, Helps Optimize Energy Bills KNOXVILLE, Tenn. — PetSafe® brand, a global leader in pet product solutions, is expanding its line of pet doors with the addition of the Extreme Weather Sliding Glass Pet Door™, the brand’s most energy-efficient option for sliding glass doors. Perfect for the changing … Continue reading PetSafe® Expanding Line of Pet Doors With Extreme Weather Sliding Glass Pet Door™