This is a custom black canvas cover made of high quality Sunbrella water-repellent canvas. It fits Mercury 2.5 liter 200 HP in the early 2000's. This is for storage. Is not vented and not intended for use while running. Can be used while trailering (I never did). In perfect condition, $75. PM me if interested. Sorry for the sideways pics- I don't know how to fix. Selling because it doesn't fit my new 3L (as you can see).
Here is the type of motor it came off of.