i have a 2004 Hunter 306. the V birth hatch is low profile design. if i measure from the beveled edge of the glass while inside the frame ie right up to edge of rubber seal it is 20 1/2 x 20 1/2 inches. If I measure from outside edge of frame it is 22 3/4 x 22 3/4. does any one know if that is a Lewmar 39660050 HATCH OCEAN SIZE 60?