Honeywell Aquastat Controller

Honeywell Aquastat Controller, Circulator Control and High Limit or Low Limit, Immersion Device for Limiting or Regulating Temperature of Liquids, 3/8″ x 2 7/8″ Copper Bulb, SPDT Contacts, Horizontal or Vertical Mounting, 65-200 Degree Operating Temperature Range, 1 1/2″ Capillary Length, 5-30 Degree Fixed Differential Temperature