Adjustable Sliding Lock Double Flap Pet Door for Medium Dogs and Cats, Strong and Rugged

Step 1: Measure the height (H) from the underside of the dog's stomach to the floor and mark this height on the panel using tape or a similar method. Step 2: Use the cutting template card to outline the opening with a marker pen and cut along the marked outline. Step 3: Apply a bead of construction silicone around the internal section of the pet door and on the surface around the cut-out to ensure a weather seal. Step 4: Insert the inner and outer frame into the cut-out and clamp them tightly together. Secure the frames by drilling screws into the tunnel and distribute them evenly.

Matte Black Dog Door Panel (M) Milk White Dog Door Panel (XL) Matte Black Dog Door Panel (XL)

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Price: - Matte Black Dog Door: $69.95 - Milk White Dog Door: $39.99 - Matte Black Dog Door Panel (XL): $59.99

Flap Options: - Single Flap - Double Flaps - Single Flap

Security Features: - 2 Sliding Lock Panels ✓ ✓ ✓ - Fits Thickness: 1 3/8'' - 2 1/8'' - Weatherproof ✓ ✓ ✓

Flexible Sizing: - The Doogie Door fits paneled, wood, PVC, and metal doors 1 3/8'' - 2 1/8'' thick, and is suitable for pets up to 40 pounds. - External size: 11 1/4''(W) x 15 5/8''(H) - Flap Opening: 8 7/8”(W) x 12 1/4''(H).

Features: - Aluminum Frame: The HARDLIGHT dog door for large dogs is made of rugged, sturdy aluminum that is durable and resistant to damage. - Energy Saving: Double magnetic flaps allow for quick resetting and improve energy efficiency, making it suitable for hot and cold climates. - Security Locking: Two locking panels ensure home security and reduce heat transfer in extreme weather, keeping unwanted visitors out. - Easy Installation: The HARDLIGHT Dog Door can be easily installed with the provided cutting template and installation guide, allowing your pets to come and go freely.

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