This allows variable opening. A larger hole had to be cut to get the 30 amp plug frame into the box. A simple i2000 would not need such a large cutout. West Marine sells a nice 7 inch SS cowl vent that would work if installed after the box is slid in place. I had no problem with salt water intrusion, had drain holes and a series of screened vents up against the transom down low for fuel vapor run-off.

This allows variable opening. A larger hole had to be cut to get the 30 amp plug frame into the box. A simple i2000 would not need such a large cutout. West Marine sells a nice 7 inch SS cowl vent that would work if installed after the box is slid in place. I had no problem with salt water intrusion, had drain holes and a series of screened vents up against the transom down low for fuel vapor run-off.