PetSafe NEVER RUST Dog and Cat Door, Medium, For Pets Up To 40 lb, Paintable, Easy DIY Installation, Closing Panel Included, Install in Interior and Exterior Doors or Walls, Durable, Adjustable Flap

Dog Door Replacement Flap Plastic Vinyl Door Strips Transparent Dog House Door Flap Strips for DIY Dog or Cat Door, Easy to Cut & Install, 11.8 in x 4.9 ft

Trixie Pet Products 2-Way Locking Dog Door, Medium to X-Large Dogs, White

Ezcasch Dog Door Replacement Strips Plastic Vinyl Strips for DIY Doggie Door or Cat Door, Clear PVC Flap for Kennel Door or Dog House, 8”x8’x0.08” Thermal Insulation Strips.

ClawJaw Dog Door Replacement Flaps, Dog House Flap-11.8" W x 4.1' L, Plastic Vinyl Door Strips for DIY Pet Door - Doghouse or Kennel Door Flap, Clear