These hatches provide an attractive and economical way to access horizontal or vertical storage areas. Watertight lid overlapping frame. Two separate seals on frame and lid. No visible fasteners. Corrosion-free integrated hinge. Hinges allow 180 degrees opening. ID 10" x 27-1/4" OD 13-1/4" x 30-3/4" Size 13" x 30" Color Polar White