Petoasis Vertical Cat Door for Window, Fits 40–44 in Windows

Fits: Petoasis cat door for window is a vertical insert for horizontal sliding windows measuring 40–44 inches high. Its aluminum frame, magnetic flap and four access settings are intended to let cats pass while controlling entry and exit.

At a glance

Designed for horizontal sliding windows within the listed 40–44-inch height range.
Listing describes spring-compression installation without drilling, with a three-minute setup claim.
Magnetic flap and stated weather-stripping and seal components are intended to limit drafts.
Four locking modes allow the opening to be left open, closed, or set for one-way pet passage.

Price

$152.99Save 10%

Reference price: ~~$169.99~~

Price checked: Nov 13, 2026

View offer

Pros and cons

Pros

Four access modes provide more control than an unrestricted flap.
Aluminum frame and a magnetic-closing flap are specified for this window-mounted design.
The listing describes a no-drill installation approach that may suit renters, subject to fit and installation conditions.

Cons

The specified flap opening is 7.8 inches wide by 10.6 inches high, which may not suit every cat or pet.

Technical specifications

10 specifications

Identity
Brand	Petoasis
Model	cat door for window

Fit and dimensions
Compatible window height	M: Fits 40"- 44" Height
Flap size	7.8"W×10.6"H
Maximum compatible thickness	0.9 inches

Construction and operation
Frame material	Aluminum
Color	White
Closure type	Magnetic
Pet type	Cat
Locking modes	4 adjustable locking modes: fully open, fully closed, pet exit only, pet entry only

What to know before buying

Measure the sliding-window height and flap clearance before buying. Customer feedback reports both effective sealing and strong magnets that some find make the flap hard to open, so consider your cat's ability to push through it.

Who is it for?

A good fit for

Cat owners with a horizontal sliding window measuring 40–44 inches high who want controlled indoor-outdoor access.
Renters seeking a window insert described as installable without drilling.

Less suited to

Buyers whose window height falls outside the listed 40–44-inch range.
Pets that cannot comfortably pass through the stated 7.8-by-10.6-inch flap opening.

Petoasis Vertical Cat Door for Window, Fits 40–44 in Windows · 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 sturdy construction, an unobtrusive appearance and ease of use, including reports that cats learned the flap quickly. Sealing and magnetic strength receive mixed comments: some describe a tight seal and effective magnets, while others say the flap is difficult to push open. For a window insert whose closure depends on magnets, that difference matters if a cat is hesitant or small. Aggregate ratings lean positive overall, but they do not establish how the door will fit a particular window or how easily an individual pet will use it.

Positive themes

Customers report sturdy construction and an appearance that blends with the window.
Some customers describe the door as easy to use, with cats learning to use it quickly.