Duraflex Heavy Duty Dog Door - Wall Mount - X-Large POWER PET® DOORS These doors are designed for

These doors are designed for style and built to last a lifetime

20 Acre Range: Few competing systems come close to this range

You won’t find a better pet door value on Earth

The most innovative invention in the history of pet doors

number of times each sensor has been triggered for any selected time period (day

Duraflex Heavy Duty Dog Door - Wall Mount - X-Large POWER PET® DOORS These doors are designed forDuraflex: The Engineered, Draft Free Door for Extra BIG Dogs! 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