The Ideal Pet Aluminum Sash Window Pet Door
This pet door is specifically tailored for aluminum sash windows, blending functionality with style – the perfect addition to keep your beloved pet both happy and safe.
Why this pet door for windows?
Elegant white aluminum finish: Crafted with high-quality materials, it's not just durable but also adds a touch of elegance to your window.
Effortless installation
Designed for easy integration, it fits seamlessly into most styles of aluminum sash windows.
A perfect fit
Step 1, choose your window width:
- 23" to 28"
- 27" to 32"
- 33” to 38”
Step 2, choose your flap size:
- Cat Flap: ideal for your feline friends (2 to 12 Lbs.)
- Chubby Kat: a perfect size for larger cats (2 to 25 Lbs.)
- Small: suitable for smaller dog breeds (2 to 12 Lbs.)
- Medium: designed for medium-sized dogs (13 to 35 Lbs.)
- Extra Large: spacious enough for larger dog breeds (36 to 90 Lbs.)
23" Model
Pet Doors | Model # | Flap Size | Recommended Weight | Window Height |
---|---|---|---|---|
Cat Flap™ | P23SWDCF | 6-1/4"x6-1/4" | 2 to 12 Lbs. | 10-3/4" |
ChubbyKat™ | P23SWDCK | 7-1/2"x10-1/2" | 2 to 25 Lbs. | 15-1/8" |
Small | P23SWDS | 5"x7" | 2 to 12 Lbs. |
12-1/2" |
Medium | P23SWDM | 7"x11-1/4" | 13 to 35 Lbs. |
16-5/8" |
27" Model
Pet Door | Model # | Flap Size | Recommended Weight | Window Height |
---|---|---|---|---|
Cat Flap™ | P27SWDCF | 6-1/4"x6-1/4" | 2 to 12 Lbs. | 10-3/4" |
ChubbyKat™ | P27SWDCK | 7-1/2"x10-1/2" | 2 to 25 Lbs. | 15-1/8" |
Small | P27SWDS | 5"x7" | 2 to 12 Lbs. | 12-1/2" |
Medium | P27SWDM | 7"x11-1/4" | 13 to 35 Lbs. | 16-5/8" |
Large | P27SWDXL | 10-1/2"x15" | 36 to 90 Lbs. | 20-3/8" |
33" Model
Pet Door | Model # | Flap Size | Recommended Weight | Window Height |
---|---|---|---|---|
Cat Flap™ | P33SWDCF | 6-1/4"x6-1/4" | 2 to 12 Lbs. | 10-3/4" |
ChubbyKat™ | P33SWDCK | 7-1/2"x10-1/2" | 2 to 25 Lbs. | 15-1/8" |
Small | P33SWDS | 5"x7" | 2 to 12 Lbs. | 12-1/2" |
Medium | P33SWDM | 7"x11-1/4" | 13 to 35 Lbs. | 16-5/8" |
Large | P33SWDXL | 10-1/2"x15" | 36 to 90 Lbs. | 20-3/8" |
Product Video
Installation Video

To determine the correct size door, simply measure the width (A) and height (B) of your pet.
(A) Measure the widest point of your pet's shoulder.
(B) Measure from the top of your pet's back (just behind their head) to the bottom of chest.
Pet door models have different size openings. Just make sure your new pet door's opening is both wider and taller than your pet's measurements to ensure they can comfortably pass through.