In addition to offering one of the largest selections of dog doors for sliding glass doors we are now excited to offer another option for people with sliding patio doors. (americas-pet-store.com)
The family - owned and operated business started in 1979 with a plastic dog door in three sizes. (petbusiness.com)
You'll want to go with an electronic dog door if you're trying to keep wildlife out or your cat in, since it only opens for your dog. (thehousebreakingbible.com)