they work great! you may have to sand the whole bigger but they work great!

Just as ordered thanks

Nice addition to my fox

3rd order,using these in my utv . needed more air movement

Use this in my center console boat with a full windshield. Works great when it rains, but there is no air movement behind it. The windshield thickness was greater than the notch for the snapvent, so had to increase it with a dremel tool. Works very well and can close them when it rains. Well worth the price!

Works very well. I made a test hole in a piece of scrap sheet metal first. The instructions which came with it were not complete. I had to go to the website to get the complete instructions . Went very well.

Great product - Forced air into the cock pit making the area cooler and more comfortable for long flights. Aircraft Spruce gave excellent service and fast delivery.

I installed the vents in my doors using the recommended hole saw after sanding the edges with sandpaper they snapped right into place very satisfied with them

I would recommend 3-1/8� hole saw and use a dremel tool with the sanding wheel to get to 3-1/4� opening and keep testing it. My 3-1/4� hole saw actually made it to big and had to glue a piece on each side to make it work.

Just installed in the flat side windows of my Murphy Rebel Elite, they seem to move a lot of air. Easy to sand too much after the hole saw cut and end up with a too loose fit. Instructions sparse from ACS or Snap Fit website. I would buy again though.

These seem to be very sensitive as to the hole size in which they are installed. I cut sample holes in the same window material using an adjustable circle cutter in drill press at very low speed. After snapping the vent in place, I suggest letting it rest for a while before deciding about the fit. The vents seem to take some time to fully relax back to their shape. So far, I have made only one flight with the vents in low speed craft. (Cub) Overall, very happy with the result.