Cat Mate 4-Way-Locking Cat Flap with Door Liner to 50mm (2 inches), Easy Installation in UPVC Doors, Walls, and Wooden Doors - White

Very good pet door that is installed in a metal porch door. This is the third cat door I’ve purchased and replaced over the past three years. Initial installation was no major problem if you are comfortable with removing the door and cutting the opening. The only issue I’ve encountered is the locking latches. Over a period of time they become weak from twice daily use and as a result my cats have at times locked themselves in or out by inadvertent movement of the latch tabs. Otherwise the pet door is well built and quite serviceable.

Overall I think it was a good buy and a good experience. I recommend this product. Here is my thoughts and experience. I ordered this so I could put a cat door on our external door to the garage. Our neighbors cat who is old and has some medical issues recently had decided to start hanging in our garage for a lot of the day and evening. So rather than leave our back door open I put the cat door in. The door showed up a day early. All the pieces were included as advertised. I followed the instructions for install and it took me maybe an hour and a half. I am semi handy for projects around the house. I left the door in place, but removing it would probably make it a bit easier - but not a requirement. I used a drill for the starter hole, a jigsaw to cut the door, and a level to make sure the install wasn’t crooked. The instructions are easy to follow, mostly pictures. My only issue was my door has an aluminum outer shell so I needed to go buy metal blades for the jigsaw. $6 for a 3 pack. Once I got those it was smooth sailing. My cuts were not perfect but the frame of the cat door hides those. Some people has issues with the screws included but they worked fine for me. I liked how there were 3 lengths included to use based off the thickness of your door. Once assembled and installed everything works fine. The door swings both ways. Seems like there’s a magnet in it to try and keep it shut when not being used. The locks worked when I checked them, but I don’t leave it locked. It’s been installed 3 days and it works good. We’re happy.***UPDATE***Just about 4 years later, works great. Still installed. The locks work well too. We have another of the neighbors outside cats who wants to move in so we use the locks to keep her out. She has figured out how to get the door open from the outside when it’s locked for exit only so we completely lock it at night. No one in or out. Works good.

This is not a 5-star review because the original order did not arrive as scheduled, apparently lost somewhere in transit by the USPS. And there were a few problems with the door itself, noted below. It is a 4-star review because, when I contacted Seacorals to report that I still had not received the shipment several days after it was supposed to arrive (and was not able to find out anything about its current whereabouts using the tracking number supplied by the USPS), they promptly sent me a new door and expressed considerable concern over the shipping failure. Also, the problems with the door did not prove to be serious.The cat door itself appears to be of good quality, and is not difficult to install, though installation in a 1.75 inch thick solid-core door between our house and garage presented some challenges.First, the liner that fits inside the cut-out is not nearly long enough to cover the entire thickness of a door this wide, leaving an unappealing brown strip visible through the middle of the opening. I solved that problem simply by lining the cut-out with white plastic duct tape. This matched the white paint of the door and the white plastic of the cat door liner closely enough to be unnoticeable, at least to a casual inspection.Second, although the cat door apparently is supposed to assemble using 8 short #6 screws to independently attach each side of the frame to opposite sides of the door (4 screws per side), I didn't like this "non-aligning" assembly feature. So I decided to get 4 long screws to "self-align" the two sides, cinching them together by passing the screws through the room door around the cut-out. For my 1.75" door, my first guess was that 2.0" #6 screws (the longest #6 screws I could find at the local hardware), would do the trick, but these proved a bit too short to go through the door when widened by the 2 frames on each side of it. I then moved on to 2.5" #8 screws, which were long enough. The extra thickness of the #8 screws was not a problem (I just drilled the pilot holes through the door a little bigger). So that was all good.The installation bonus was that, to position the cat door low enough for the cats to use, I had to install it across 2 raised panels of the room door. This meant there was a "V"-shaped depression in the middle of the opening on each side that, when I first cut it, I thought I would have to fill in with some type of sealer under the frames, to make the opening air-tight. However, when the frames were fitted to the opening--although the inside liner was not long enough to reach all the way through the door--it did prove long enough to completely cover these depressions, providing a good tight fitting seal all the way around the opening on each side, with no additional effort. (If you don't want to settle for the pretty good natural seal provided by the frame liners, you could easily caulk around the outside of the frames to ensure a perfect seal.)As for the cat door itself, once installed, it seems perfectly functional. Although our 2 cats are both still kittens, the door appears to be the perfect "Goldilocks" size -- not too big, but not too small either for an adult cat, just right. Due to the magnetic closure feature, the flap operation of this door is stiffer than the free-swinging flaps I've had in the past -- the flap stops abruptly in the down position and has to be "broken" free when opened -- but that fact didn't seem to bother either kitten, both of whom learned to pass through it freely in less than a day.The 4-way closure feature is logically complete, covering all possibilities (which I appreciate abstractly, as a former teacher of logic), though we only need 3 of the 4 settings. (Open both ways, so the cats can pass back and forth at will; open out only, so the cats can't come back in the house when they are banished to the garage for some reason, e.g., cat-allergic guests; & open in only, so the cats can't go out into the garage when some activity is in process better done without a curious cat in attendance, e.g., working with power tools. I guess the fourth setting, open neither way, might be useful if you had two incompatible sets of animals needing temporary separation.)My only small concern is the plastic locking tab has to be pushed up to slide it back and forth, and I don't know how durable this plastic tab will prove to be over time in daily use (I've had a lot of plastic tabs break off over the years). But, so far, so good.

Many years I had PetSafe cat door installed for door from garage to house (it was replaced twice due to wear out). The problem was that my door is hollow and slightly less than 2" and the look from garage was to say mildly 'ugly'. Then my cats learnt how to open the lock on this cat door - they claw it until it will slide open and recently they just ripped the slider off completely.So in search for a new door replacement I found this one with door liner (at first I found liner and was thinking to buy liner and PetSafe door again - because the hole already there). I was hesitant because given measurements for 'Cat Mate 4 Way Locking Cat Flap with Door Liner' were slightly larger than PetSafe 2-way lock door, but decided to risk and mentally was preparing myself to sawing project for the larger hole.To my surprise (and joy) this door fit exactly to existing hole from PetSafe. Installation was easy and the door liner looks amazing. The other good feature that this door has dark gray transparent flap and cats can see through it if somebody is waiting to jump on them from the other side. Not all cats accepted it equally easy - some were very cautious to go through the new door, but after couple day they using it without any problems.In addition, I have huge 18.4 pounds cat - he can go through this door also without problems - just slowly sliding through it.Locking mechanism works great, but right now it is difficult to say how long it will hold (the locks are from garage side).Overall I am very happy and very satisfied with quality and features of this product.