US
PetSafe

PetSafe Never Rust Interior Cat Door

  • Size: 1 count
  • Weight Capacity Maximum: 20 pounds
  • Closure Type: Magnetic
  • Maximum Compatible Thickness: 1.5 inches

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A straightforward interior cat door for keeping dogs out of a cat's space, worth it if the door falls within the 1.5 inch thickness limit.

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ASIN: B08PHTJ7QVCategory: Cat Doors

Overview

The PetSafe Never Rust Indoor Cat Door mounts into an interior door to give cats access to a room, food or litter box that stays closed off to dogs, using a magnetic closure and a plastic frame rated for cats up to 20 lb.

This is an interior door insert, not an exterior pet door, and it's built for doors up to 1.5 inches thick. The magnetic closure and white plastic frame keep the mechanism simple, and PetSafe includes paintable finishing plugs and screws for installation. It's sized around the cat using it, with the extra small dog breed size note in the specs describing the cat's own size class rather than dog access.

  • Magnetic closure, white plastic frame
  • Fits interior doors up to 1.5 inches thick
  • Rated for cats up to 20 lb
  • Made in USA, 1 year limited warranty

Who it's for

Households with a dog that needs to be kept out of a cat's litter box, food or private space, where an interior door already separates the rooms. Not for exterior walls or doors thicker than 1.5 inches.

Pros and cons

Pros
  • Keeps dogs out of litter box or food while cats pass freely
  • Magnetic closure adds privacy over an open cutout
  • Includes finishing plugs and screws for install
  • Backed by a 1 year limited warranty
Cons
  • Only fits interior doors up to 1.5 inches thick
  • Rated to 20 lb, not suited to larger cats

Performance notes

The magnetic closure is meant to swing shut on its own after the cat passes through, keeping the opening from staying propped open. Because the frame is rated to a 1.5 inch door thickness and a 20 lb cat, both limits are worth checking against the actual door and cat before installing.

Specifications

BrandPetSafe
Dimensions & fit
Size1 count
Weight Capacity Maximum20 pounds
Dog Breed SizeExtra Small
Item Weight1.15 pounds
Construction & materials
Frame MaterialPlastic
Material TypePlastic
ColorWhite
Compatibility & installation
Maximum Compatible Thickness1.5 incheslower than 90% of 22 cat doors
Included components
Unit Count1
Included Components4 Paintable Finishing Plugs, 4 Screws, PetSafe® Cat Corridor™ Interior Pet Door
Warranty & support
Manufacturer Warranty Description1 year limited warranty.
Other details
Closure TypeMagnetic
AsinB08PHTJ7QV
ManufacturerRadio Systems Corporation
Best Sellers Rank#88,185 In Pet Supplies (See Top 100 In Pet Supplies) #174 In Cat Doors
Manufacturer Part NumberZPA19-17227
Model NumberZPA19-17227
Target AudienceCats, Dogs
Customer Reviews{'ratings_count': '1,035', 'stars': '4.8'}
Item Type NamePetSafe Cat Corridor Interior Pet Door
Upc729849172272

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Frequently asked questions

Will this work on an exterior door?

No, it's built as an indoor cat door for interior doors, not exterior use.

What door thickness does it fit?

Up to 1.5 inches maximum.

What's included in the box?

The door insert plus 4 paintable finishing plugs and 4 screws for installation.