Comparison : |
Item # PTFS-180SM-09450, 3800 and 7700 Revolutions Per Minute (rpm) Speed (At Maximum Efficiency) Carbon Brushed Direct Current (DC) Micro Motor Item # PTFS-180SM-17140, 6400 Revolutions Per Minute (rpm) Speed (At Maximum Efficiency) Carbon Brushed Direct Current (DC) Micro Motor
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