Product review (4 stars): Perfect for my gas dryer line.
This was perfect for me. I read the specifications on a lot of the other lint traps and a good deal of the plastic ones are not rated for natural gas dryers, only electric dryers. If you have an electric dryer, stop reading this and find something cheaper. If you have a gas dryer, this is what worked for me. I thought that since I have a Samsung dryer that is less than one year old, it would catch all of the lint from the clothes. I was wrong. I really needed a secondary trap. I have open access behind the wall of my dryer so I could place this inline and clean it easily without having to move my dryer. Having read some of the reviews, the biggest complaint seemed to be how the seams started collecting lint in them. Before installing this, I used moisture rated HVAC foil tape on all of the seams. On the 4" round inlet and outlet ports, I used a grey, silicone HVAC caulking. I had all of this already so it was not a big deal for me but if you don't, look them up and consider that into your costs. That is the only reason that I took off one star.  I waited for the caulking to dry overnight (just to be safe) and installed it with the access panel on the top so I could see inside and clean it. I haven't had a single problem with this.

At the time of my review, I see this is no longer available which is too bad because I was going to buy another one for my parents who are in a similar situation as me.