petcoming dog door for door all aluminum 3 flaps black, large dog doggy doggie door, heavy duty pet door for dogs cats, with insulation flap, telescoping tunnel, sliding closing panel, for pets up to 110lb is up for auction in Pet Supplies. The current bid is $1.00, 99% below the $95.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.