Seaflo SFMP1-120-01. The latest version of the Macerator Pump now has a fully sealed motor and a new more powerful chopper blade. The sealed motor consists of o-ring sealed end bells, sealed bearings and a hard durable powder coating to prevent corrosion occurring both internally and externally. A new four bladed chopper has been added to further reduce the possibility of clogging. The SEAFLO 01-Series DC macerator pump unit is the ideal solution for the emptying of marine holding tanks, fish boxes and livewell receptacles.