In the past, we have used a variety of vent grills. Our previous boat had an all teak interior just as this one does. So naturally we use teak grills for that finished look. But aside from the fact that these teak grills are way too expensive, in my opinion, need to be varnished and the slats are easily broken if something heavy inside the locker falls against them. We have had this happen on more than one occasion.We have used stainless steel grills and they work fine, but just don't look right to us. With the areas we wanted to cover done in a dark teak, we were concerned that anything white would stand out too much. So our options were black or brown, and square or round. The brown grills we could find were either too flimsy or designed to have an air-conditioning duct attached, and stuck out too far in the back. We found a nice, sturdy, black, round grill and ordered 6 of them to do the surfaces we wanted to vent.