Will this cat door fit my window?

It fits sliding windows with a track that can accommodate the adjustable frame. Measure your window frame and your cat's height before buying. The adjustable length adds 5 inches, but the door works best with standard vertical sliding windows.

Can I lock the door to keep my cat inside or outside?

Yes, the four-way locking system lets you set it to in-only, out-only, two-way, or fully locked. This is useful for keeping your cat in at night or out during cleaning.

Is installation really tool-free?

Yes, it installs without drilling. You place the door in the window track and tighten the knobs to secure it. No screws or tools are needed.

Does the flap close quietly?

The magnetic flap and brush-lined edge help it close smoothly and quietly. It is designed to self-close after your cat passes through.

What is included in the package?

The package includes the cat door for window and a manual. No additional mounting hardware is required.

The flap is clear and scratch-resistant, and the frame is aluminum alloy, so it should hold up to daily use. However, very determined cats may still scratch it over time.

Where is the Adjustable-Length Window Cat Door cheapest?

At Deal.ai, for $277.80, as of our latest check.

Adjustable-Length Window Cat Door

Sold and shipped by Deal.ai

$277.80Free shipping

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Arrives about Nov 14–23, from a US warehouse

No returns for change of mind. If it arrives damaged or isn't what you ordered, or never arrives, report it within 30 days and we refund you in full.

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Price facts

Last seen at $277.80 at Deal.ai on Nov 9.

Our take on the Adjustable-Length Window Cat Door

This is a window-mounted cat door with an adjustable length to fit different window frames. It has a four-way locking system, a magnetic flap that closes automatically, and a brush seal to keep drafts out. The aluminum frame and scratch-resistant flap are built for daily use. It installs without drilling, making it a good choice for renters or people who want a temporary setup. Compared with wall-mounted or glass-cutting cat doors, it is less permanent and easier to remove, but it only works with sliding windows and may not fit all frame types.