Navigate to North or East Shallow Draft and Swift Water Buoys Shallow draft and swift water designs contain ballast inside the flotation collar. Both SW and SD have concrete ballast inside hull. It's injected with 2 lb. density polyurethane foam and internally ballasted with hydraulic concrete into which a forged steel eyebolt is locked by a steel plate. Large usable daymark area with 5 lbs. Available with reflective symbols in all standard configurations.
Recessed eye allows buoy to stand flat.
It is injected with 2lb. Density polyurethane foam and internally ballasted with hydraulic concrete. Eye is mounted to bottom of buoy. Available with standard inland waterway markings. Item Model Can Dia.