7-DAY TIMER,4 SPDT,SPRING C/O

Sail Switch, Responds to Air Velocity in Heating or Warm Air Ducts, 1 SPDT Switch, 1900 Fpm-2250 Fpm Operating Velocity, 1 1/2"x4" Sail, 3 1/2" Indertion Length

M6520 LIMIT SWITCH