Honeywell High Limit Manual Reset Aquastat Controller W/ 66" CapillaryHigh Limit Manual Reset Aquastat Controller with 100 F to 240 F operating temperature and 66" capillary. Product Specifications BRANDHoneywell LENGTH INCHES2-7/8 DIAMETER INCHES3/8 CAPILLARY LENGTH INCHES66 TEMPERATURE CONTROL RANGE °F100 to 200 SWITCH TYPESPST, contacts break on temperature rise APPLICATIONHigh Limit; Manual Reset DESCRIPTIONHigh Limit; Manual Reset Aquastat Controller LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERL4008E1313