The first and only pet doors to be tested by home energy star rated home auditors for energy efficiency and sold by EFI a energy star partner. Our pet doors have an air-tight seal that will not compromise the comfort of your home; vetrinary approved for safety and comfort for your pets; attractive triple layer opaque flaps that are easily cleaned and disenfected; made from non-toxic, high energy efficient materials. We build our pet doors up to quality and not down to price and we are number one in customer service.