The Ideal Ultra Flex pet door series comes with a tough ABS plastic frame and the energy-saving Ultra-Flex flap madeof three dual pane LEXAN® hard panels with an air gap in-between for maximum energy efficiency and wind resistance. The plastic frame is great in areas around salty water since it will not corrode like metal dog doors will do. A weather strip is included around the Ultraflex pet door flap to assist with blocking wind and promoting energy efficiency. If you are looking for an Ultra Flex pet door replacement flap, they are not available at this time.
The upgraded premium Ideal Draft Stopper series also features the Ultra Flex three piece flap. However, with the DraftStopper pet door series, the Ultra Flex flap is an upgraded model that has eight additional magnets around the flap edges to ensure the maximum seal possible for your dog door. It will remain closed with winds of up to 35 miles per hour. The Ideal Draft Stopper dog doors come with an aluminum frame.