Overview Other Details Reviews Product Description DAMPER ACTUATOR, SPRING RETURN, 175 LB-IN (20 NM), TWO POSITION CONTROL, 2 INTERNAL AUXILIARY SWITCHR Other Details 7.4 Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Honeywell Honeywell MS4120A1209/U Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments