Large Dog Door for Exterior Doors, Cutout Size 12.2''W x 18''H, Heavy Duty Double Flap for Extreme Weather, Energy-Efficient, Easy to Assemble, Lockable Panel Included, Sliver (L) Large Sliver is up for auction in Pet Supplies. The current bid is $2.50, 97% below the $99.95 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.