BUSCH INC. RA0100.E506.1001 VACUUM PUMP ***REPLACED BY F SERIES*** RA0100.F506.11XX (WITHOUT BALLAST) RA0100.F506.11XG (WITH BALLAST) RATED FOR CONTINUOUS DUTY 63 CFM, 5 HP, 230/460V-60-3P W/O Starter, 29.9"Hg * (0.5 Torr)