easy to put in and works
581824
I use in an UPS system, easy to put in and works fine
2054064
Put it in and it worked no problem. Very satisfied.
11454
It was fairly easy to install.and works as listed.
879074
This was super easy to install, and it works great.  I can't believe I waited so long to put one in.
1415220
works like a charm! super easy to put in, couldn't be more pleased :)
1747370
Works great, easy to install.  Just plug in and its ready.
1505087
easy to install and does the job. I thought the mess was going to be a little more see through but I'm glad it's not.
2344750
Works well, easy to install.  Has worked fine for the past 2 weeks I've been running it.
3564433
It was easy to install and worked as it is supposed to.
4266050
(star rating based on price) Used this, it seems to have solved some of the problems but i cant be certain if it should have fixed the other problems or if there is an as of yet undiagnosed problem that i haven't yet found.  Easy to put in, hard part to find, good price, would buy again.
3230783
Works how it is suppose to. It was easy to put on.
591641
Easy to install and works great.  Took about 10 minutes to install.  Window opens up my itself after I lift it about three inches.  Has been installed for about three weeks and have no issues.
3925431
It is as simple as they say it is.  Went in very easily and works just as it should.
3669738
It works, and I will buy again.

This is similar to the 4 inch louvered duct fitting typically used for dryers - just bigger. The plastic louvers move easily without any binding.  The through-wall tube is light aluminum so you need to handle with care when attaching to inside ducting. (I typically expect 6 inch flexible ducting to be heavier than 4 inch, and this tube being the same lightweight stuff used for 4 inch exhausts made me more cautious.) The metal tube to exterior plastic cover attachment is a typical force-fit-over-molded-flanges arrangement. I think there were four flanges and matching holes in the tube.  Tight but secure fit - but a real pain to do carefully without crushing the thin metal tube.

Two asides: 1) This doesn't come with a cage cover, so if you will mount this near the ground within rodent access  range you should consider some metal mesh.  2) if you will be detaching and attaching the ducting, or subjecting it to stress where attached you may want to make your own through-wall tube out of heavier gauge roof flashing.  Just a thought.
3879420
Easy to adjust the length, works as expected.
1856963
It works and is solidly built. It is easy to put the hdd in or take it out. In fact, for temporary use, you don't even need the screws for the hard drive! I just put it in the tray, then I can push it in and take it out.

The cage itself is metal. The fan and trays are plastic. I don't find the position of the connectors too annoying. I use Antec 900 case with an old motherboard, an old power unit. The four pin power connectors are actually good for the old power unit.

There are three sets of screws. For securing the case, it seems one should use the mid-length ones (the longest and shortest are both for mounting hard drive, I suppose).

This thing is pretty big (especially the back side). I let the front stick out my computer case a little bit. (Unfortunately, my old motherboard does not support AHCI in the BIOS. So I cannot really hot-swap, but that is not the cage's fault.)

Overall I like it.
2513600
My filter broke after a power outage. I was worried I'd have to spend another $50 to get a new one, then I saw this. It works great and its easy to install and cheap. Just turn your old filter to the left and pull out remove. Then put this one in sideways and push in to insert. Very easy and works great!