BL-75-4 - 3/4" Base/Line 2000 Baseboard Heater - 4 ftSlant Fin BL 75 4 3 4" Base Line 2000 Baseboard Heater 4 ft For decades, Base Line 2000 has been ideal for heating in tract housing, apartments and renovations. Base Line 2000 installation fits perfectly to the space, while providing a neat, finished look. Although Baseline is competitively priced, you can count on consistent, high quality piece to piece and job to job. No one is more experienced than Slant Fin in designing and manufacturing baseboard