L6006A1145 RSD Aquastat Controller, Circulator Control and High Limit or Low Limit, 3/8" x 2 7/8" Copper Bulb, SPDT Contacts, Horizontal Mounting, 100-240 Degree Operating Temperature Range, 3" Capillary
Honeywell L6008A1242 - 120V Line Voltage Aquastat Controller
Circulator Control Low Limit Aquastat Controller W/ 100 F To 200 F 85267176484 | eBay
Honeywell L6006A1145 - 120V Line Voltage Aquastat Controller