Review on Premium Calimaero VKE 5-Inch Stainless Steel Air Vent Louvre With Gravity Flap Grille by Roshan Schram

The unit is very nice looking and built robustly.-1 star for not having an extension pipe on the back side and having an undersized pilot. I had an extra extension pipe that I was able to put on it, but it was very loose because of the small pilot. I had to buy an extra pipe clamp to hold it on. The pipe clamp only barely fit inside the hole in siding. The hose clamp may be an issue for non-siding applications.-1 star for the awful oscillation that the flaps made when I ran the fan. They clinked and clattered real bad. I put foam tape on the bottom but that didn't help. I ended up having to bend the tabs on the flaps where they sat on the pivot pins in order to put some drag on the flaps.I was able to make it work, but for the price I expected a better product.