Replacement for IML Neck Ring filter. IML reference: SP-04-0133 Equivalent for Lisbon filters (16660FP74, FS-450-G, 16661FP74, 16661FT73, 16662FP74, 16662FT99, 16663FP74, 16663FT99, 19782FP74, 19782FT99, 21072FP74, 21072FT99, 41561FP74, 41562FP74, 41563FP74, 41564FP74, 41565FP74, 41566FP74, 41566FT73, FV-500, FV-500-G, FV-550, FV-600, FV-600-G, FV-650, FV-650-G, FV-680, FV-750, FV-750-G, FV-800, FV-900, FV-900-2, FV-900-G, FV-950, FV-950-G, FS08-500, FS08-600, FS08-750, FS08-900, FS08-900-2, FV08-500, FV08-600, FV08-750, FV08-900, FV08-900-2, Nile (FINI100500, FINI100650, FINI100800, FINI100950),... FEATURES: Neck ring with 12 screws at the bottom for tightening to the filter and 8 screws at the top for tightening to the cover INCLUDES: 1x neck cover 1x neck to filter tightening nut kit 1x neck to filter gasket