Dock float 4611 series

Seamless, UV-resistant black polyethylene shell filled with EPS foam. The tough outer shell resists impacts and protects the foam core from saltwater, gasoline and most chemicals. Thick mounting flange can be drilled to accommodate attachment fasteners for easy mounting to any dock design. Constructed with ventilation holes that let air in and keep water out. 8-year flotation warranty. NOTE: Not designed to attach to each other. Minimum recommended mounting hardware: 3/8" x 3" large lag screw 3/8" washer & 5/8" washer American National Standard Type A plain washers (series W)