Originally Posted by Phillbo
It's a boat, they are not cheap. Get the new one from the canvas shop. It will last forever.
Mooring covers are snapped around the outside of the cockpit. Generic covers will cover the entire boat below the rub rail. These would be more for storing in a yard and in some cases towing.
You won't find many used covers. They are expensive. People use them until they are unusable.
You not find a true mooring cover in a retail store. Retail stores wouldn't stock them because they fit a specific make, model and year of boat. The inventory would be massive and they'd have to hold them for a long time waiting for a guy in a 1997 Rinker 252 (or whatever) to walk through the door.
Your best bet is to have one made. It will last many, many years. Probably longer than you'll own the boat.