You said you had plenty left over and could have given me some. Do you know if it was more than 25 feet to do all four hatches?
Kent , Pretty sure this is what I bought and it fit perfectly , there is several sizes available , but I think 1/2" X 1/2" is what I ordered. Take a measurement of your hatches to be sure. It comes from 25 ft. to 100 ft. rolls. I had plenty on board, could have given to you in St. Michaels. Say Hi! to Iris .