Five Oceans 316 Stainless Steel Clamshell Vent Cover, 1-Inch H x 2-1/2-Inch W, Base 3-11/16-Inch L x 3-7/16-Inch W - Marine Wire Cover - FO4010

This was perfect for my needs. Good quality. Easy to install. I took it to the hardware store to get the right size screws. Would be nice if I do included what size screw fit best.

Product is bigger than advertising - inside width is 2 1/2" overall length is 3 5/8"and heights 1 inch.. it's a big clamshell !!!!!