Фильтр масляный для электрогенераторов Westerbeke: 11.0 BTD (60Hz)/8.3 BTD (50Hz), 12.5 BTD (60Hz)/9.4 BTD (50Hz), 12.5 BTDA (60Hz)/9.4 BTDA (50Hz), 12.5 WMD (60Hz)/9.4 WMD (50Hz), 15.0 BTD (60Hz)/12.0 BTD (50Hz), 15.0 BTDA (60Hz)/12.0 BTDA (50Hz), 15.0 BTDB (60Hz)/12.0 BTDB (50Hz).