View results for Tri-hull Below. FluidMechanix is the Premier seller of Boats, Engines and Trailers. View our large selection of boating equipment. SEA BREEZE TRI - HULL 19 FOOT 1969 350 CHEVY 1973 Seaswirl 15ft Tri-Hull Runabout w/ Trailer tri-hull   antique boat   hydra-sport   tug boat   polar craft   polarkraft    Ray   Regal  Triton   ©1996- 2005 FluidMechanix