Interior cat door · The Kitty Pass

The Kitty Pass Interior Cat Door

The best-selling interior pass-through

Updated October 2026

Quick verdict

The classic interior door.

Strength
Smooth opening, no flap.
Trade-off
No lock.
Right buyer
Owners hiding a litter box.
Dimensions (seller)
7.5 x 6.5 x 12.5 inches; 6.4 ounces
Product weight
6.4 ounces
Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Why it matters

The Kitty Pass lets your cat through a closed interior door, typically to reach a litter box or feeding room, with no flap to learn or catch tails. The smooth, wide opening is 7 1/2 in wide by 6 1/2 in high, for cats up to about 20 lb.

It fits standard interior doors, has no visible screw holes or logos, and comes in semi-gloss white that you can paint to match.

Who it's for, and who should skip it

Good fit if

  • Litter box rooms
  • Dog-free zones
  • Cats up to 20 lb

Look elsewhere if

  • Exterior doors
  • Homes needing a lock
  • Small dogs that should stay out

Pros and cons

Pros

  • No flap
  • Clean look
  • Paintable

Cons

  • No lock
  • Interior doors only
  • Small dogs can fit

Limitations to weigh

  • Measure your cat's widest point and the door or wall thickness before cutting; check the cut-out size on the maker's template.
  • Interior doors are often hollow; follow the maker's guidance for hollow-core doors.

Specifications

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

MaterialPlasticRetailer
Frame materialPlasticRetailer
Breed sizeSmallRetailer
ClosureLatchRetailer
Pieces1Retailer
Product weight6.4 ouncesRetailer
Model numberfedsRetailer
Dimensions (seller)7.5 x 6.5 x 12.5 inches; 6.4 ouncesRetailer

Alternatives worth comparing

More cat flaps & doors we cover

All cat flaps & doors, compared in one table

Final verdict

The easy way to keep a litter box behind a closed door.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

Is there a flap?
No, it's an open pass-through.
What size cats fit?
Cats up to about 20 lb; the opening is 7 1/2 x 6 1/2 in.