It’s empty in here!
Please note this worked well for a while then my two bengal cats broke it and got out when they shouldnt have. Great shame as it was ok for what I needed. Bengals are strong and will basically get through whatever they can.
I bought this flap for an outdoor enclosure, perfect for this, could be used for house. Very easy to install: cut hole, place in and screw both sides to the wood. It comes with 2 inner sections so you can install in different thicknesses. The surround of the flap has a felt brushy bit designed to stop drafts, there are still gaps though where the switches are so this doesn't really work -may actually be worse than one without the felt. Magnets to keep the door shut work well. Cat has no trouble using the door and as door is only tinted she can still see through.
Easy to set up, no draught, really like the 4-way function. It's a good, cheap alternative to a magnet door.