Duraflex Heavy Duty Dog Door - Wall Mount

Description Specifications Key Features Revolutionary Ingenious New Design Air Tight Flap is 100% Draft Free Sealed with Super Strength, Rare Earth Magnets Withstands Storm Force Winds up to 50 mph Durable Heavy Guage Aluminum Frame Stainless Steel Hardware Scratch Resistant Powder Coat Finish Medium flap size is 8 L” X 17 L” For dogs up to 50 lbs. Aluminum Wall Mount Kit Included At last, a Professionally Engineered Pet Door! Duraflex pet doors represent a major advance in mechanical pet door technology and performance. These premium quality, heavy duty pet doors remain air tight even in hurricane force winds yet easily opened by a puppy. How is that possible? The secret is in the ingenious magnetic closure design. Some conventional pet doors use just a few magnets that do a poor job of sealing against drafts. Others use a continuous magnet strip that is hard for your dog to open. Duraflex doors use super strong, rare earth point magnets along the entire periphery of the flap pl