Petoasis Adjustable Aluminum Window Cat Door, 28–32 in

Aluminum: The Petoasis window cat door is an adjustable insert for vertical sliding windows, with four access-lock modes and a magnetic flap. Its listed fit range is 28–32 inches, so check both window width and track width before ordering.

At a glance

Made for vertical sliding sash windows, with an adjustable stated width range of 28–32 inches.
Four lock modes are described for controlling indoor and outdoor access.
The aluminum frame has a magnetic-closing flap and pre-installed weatherstripping, with extra foam and vinyl seals claimed.

Price

$81.87Save 11%

Reference price: ~~$91.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Tool-free, no-drill installation is claimed, which may suit renters or buyers avoiding window modifications.
Four access-lock modes offer more control than an unrestricted flap.
The listing specifies the flap opening and frame dimensions for checking pet and window fit.

Cons

The 7.8 × 10.6-inch flap opening may not suit larger pets. The listing identifies cats and extra-small or small dogs as target pets.

Technical specifications

12 specifications

Identity
Brand	Petoasis
Model	Door Open：7.8"W×10.6"H

Fit and dimensions
Size	M: Fits 28"-32" Width
Minimum compatible thickness	0.9 inches
Maximum compatible thickness	28 inches
Flap opening	7.8"W ✖ 10.6"H
Door frame height	15.3"
Door frame thickness	0.9"

Materials and finish
Material listed	Aluminum
Color	White Cat Door

Pet compatibility
Pet type	Cat, Dog
Dog breed size	Extra Small, Small

What to know before buying

Listing details to confirm

The listing gives inconsistent fit information: the title and size field specify a 28–32-inch window width, while a separate details field calls 28 inches a mattress thickness and gives compatible thickness limits of 0.9 to 28 inches. Confirm the window width, track fit, and what thickness the stated limits refer to before buying. The model field labels the flap-opening dimensions as a model, while the feature text separately describes them as flap size. The listing also claims an extra window lock and sealing strips, but no explicit package inventory confirms included components. Customer feedback is mixed on sealing and magnet strength, with some reporting that the flap is hard to open.

Who is it for?

A good fit for

Cat owners with a vertical sliding window that measures within the stated width range and pets able to use the 7.8 × 10.6-inch opening.
Buyers seeking a no-drill window insert with adjustable access through multiple lock modes.

Less suited to

Owners of pets that need a larger flap opening.
Buyers with a window type other than the stated vertical sliding sash design, or whose measured window and track dimensions do not fit.

Petoasis Adjustable Aluminum Window Cat Door, 28–32 in · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 806 ratings

5 stars71%71%
4 stars14%14%
3 stars9%9%
2 stars2%2%
1 star4%4%

Customer feedback describes the door as sturdy and well-constructed, with positive comments about its appearance and ease of use. Some customers report that cats learned to use it quickly. Sealing and magnetic strength receive mixed feedback: some find the seal and magnets effective, while others say the flap is hard to open. That matters in practice because the listed magnetic closure and seals may help with closure, but a strong closing force may be inconvenient for a hesitant or smaller pet. Aggregate ratings lean positive, though they do not explain individual experiences.

Positive themes

Customers describe the construction as sturdy and the appearance as unobtrusive.
Feedback reports easy use, including accounts of cats learning to use the flap quickly.

Mixed feedback

Customers disagree about sealing effectiveness and whether the magnets make the flap too difficult to open.

Frequently asked questions

What window width is this door listed for?

The size field states 28–32 inches. The listing also contains inconsistent thickness information, so measure the sash and track and confirm the intended fit dimensions before ordering.

How large is the flap opening?

The feature text lists a 7.8-inch-wide by 10.6-inch-high flap. The model field repeats those dimensions but labels them as the model.

Does it need drilling?

The listing claims tool-free installation without drilling for vertical sliding windows. It describes installation as taking five minutes, but that timing is a listing claim.

Can the flap be locked?

The listing describes four lock modes for controlling access. Customer feedback is mixed on magnet strength, with some finding the flap difficult to open.