HIDROSIL Dog Door for Wall (Heavy Duty, Large, Smoky Gray variant):

Construction: Rugged aluminum alloy frame designed for lasting durability and outdoor resilience AbundaSnapklik.

Tunnel Fit: Designed to mount on walls of 4″–8″ thickness AbundaSnapklik.

Dimensions:

• Frame: Approximately 17″ wide × 21⅓″ high.

• Flap Opening: Around 13½″ wide × 18″ high.
  These dimensions make it suitable for large dogs, up to 120 lbs AbundaSnapklik.

Functionality:

• Includes double magnetic flaps for effective insulation.

• Equipped with two sliding locking panels offering control and security over pet access AbundaSnapklik.

Installation Ease: Comes with an installation template and clear instructions to simplify setup AbundaSnapklik.