Rated 3.7 out of 5 by 3
Rated 5.0 out of 5.0 by DIYHomeowner MADE ROOMS MORE COMFORTABLE
Very simple to install, no special tools or skills needed. Very clever design and good instructions. Made noticeable difference in air flow in the rooms compared to before when flex ducts had kinks.
April 1, 2013
Rated 1.0 out of 5.0 by Gary Good, except
The zip ties provided with the duct elbows in the package were not long enough to encircle the flexible duct as stated of up to 16 inch diameter. Even 12 inch diameter duct will require a 37.69 inch tie.
March 1, 2015
Rated 5.0 out of 5.0 by DJensen99 Does what it says!
I stumbled onto these when looking for energy improvements for my house. After inspecting, my flex duct installs were kinked to all of my upstairs runs, so I decided to try these out. They installed quickly and easily, and the results were immediate. The airflow increased quite noticeably, and the upstairs is much more comfortable in general now.
May 27, 2013