Buyers Products Black Powder-Coated Beacon Brush Guard fits over a variety of strobe beacons to help protect them from damage. The 6 in. diameter, 6.5 in. tall guard features quad-bar protection. NOTE: This guard will NOT work with the following beacon strobes: 8891020, B745229T, B745236T, RL650A, SL475A, SL475R, SL500A, SL501A, SL650A, SL660A, SL665A.