HOFFEN Stainless Marine Louvered Ventilation Review

. and the mounting hole pattern shows a very good position. However, I plan to use them for a metal electrical box and was hoping that the fin slots would be wide enough to allow for air cooling. However, the openings between the louvered elements are only about an eighth of an inch, and I doubt much air will flow through them. In addition, the dead space at the top and bottom is too large. In short, these panels are decorative, not functional.