Seaview Stainless Steel Guard for 12-20 Radar DomesProtect your radome from damage and reduce wear and tear on the sails with Seaview Mast Mount Guards. Manufactured from marine grade 316 stainless steel and finished with a high polish. No extra fastenings required, mounted using the radome bolts. Fits easily between the mast mount and radar antenna. Compatible Units:Furuno - 15 - 18 Radomes, DRS42 (1st Watch)Garmin - GMR18(HD), GMR18x(HD) Radomes JRC - JUE 250, JUE 33 (14) Koden - 18 (MDC 900 Series) Radomes Lorenz - 12 - 24 Radomes Lowrance - 3G, 4G Radomes Raymarine - 18 Radomes, 33STV, 37STV, 45STV Seiwa/Tech Marine - 12 - 24 Radomes Simrad - 3G, 4G, HALO20 Sitex - 18 (T760/T921) RadomesThrane & Thrane - FB150, FB250, Fleet33, Fleet33+