Humminbird 740036-1 MC W Mount Cover;

Mount cover which provides protections for the unit's connector panel, keeping rain and dirt out of the electrical connections while the unit is not in use (removed from the base). Made of durable textured vinyl. Used with the MS2-Y, MS2-G, MS-B, MS M, AND MS 700E. For Use With: MS M, MS2 Y, MS2 G, 100SX, 200DX, 300TX, 400TX, Wide 100, Wide One, Wide Eye, Wide View, Wide Vision, Wide 3D Vista, Wide Optic, Wide Portrait, Wide Panorama, Wide Paramount, Wide 3D Paramount, Matrix 10, Matrix 15, Matrix 17, Matrix 20, Matrix 25, Matrix 27, Matrix 35, Matrix 37, Matrix 55, Matrix 65, Matrix 67, FF515, FF535, FF565, 323, 343, 363, 383, 141, 727, 737, 767, 777c2, 787c2