"Perfect Pet Medium All Weather Series Door Wall Kit (Medium; For Walls From 4.75""-7.25""; 7.25"" W X 13"" H)"

"Perfect Pet All Weather Series Door Wall KitAllows you to install your Perfect Pet All Weather Series Insulated or Protector Door in a wall. Designed for maximum energy efficiency the wall kit provides an air pocket up to 9"". Snaps together for varying depth walls. Complete with hardware and detailed instructions. Be sure to coordinate the size with your Perfect Pet All Weather Series Insulated or Protector Series Door. Pet doors sold separately."