We received our heavy duty dog door last week and easily installed. Some “training” in/out with our 3 year old lab and 8 month lab pup and doing great. Impressed that we still have a door!!! Have gone through 6 vinyl doors and actually left the opening uncovered all summer out of frustration!! You have an awesome product and for the same price as my easily chewable/tearable doors bought at the home improvement store!! Thanks so very much!!!!!!!!!!!!!!!!!!!!!!!!
Brian H.