I know this post is old, but since then, I got a 5ther last Nov 22. I decided to install this "RV Airflow" system after ready all about it and seeing videos online. After the install, I can say it was like night and day in the difference. Worth the money IMO.
Also when I was installing the 1st one, in the bedroom (Coleman Mach 15Q, 12x12 filter 13.5K) I found that Keystone, did some really odd size vent openings and the kit's vent pieces were way to small. So I emailed them about it. The next day I got a call asking what I am seeing wrong and what could they do to make this right. In the end, I got it all install (reused factory duct covers). This lead me to order another one for the living room AC, same as bedroom but a 15K unit. When I went to install this one, these vents also were different than the bedroom ones
. I resolved the issue, but as I was installing it, I poked my thumb threw the divert box
. I had to call the company up and ask them, if they had replacement parts, since I broke it. The good folks there, said no problem, we will have a new diverter box shipped out the next day free of charge.
That is great customer service.
To sum this all up, this is a great product IMO, and they have great customer service!!!