Aquastat Relay With Molex Plug 120V 60Hz. Range 180- 240F 1-1/2" to 3" Insul Less Well.Made in the USA. Product Specifications BRANDHoneywell MAX OPERATING PRESSURE (PSI)225 TEMPERATURE RANGE HIGH LIMIT180-240 SWITCH TYPESPST: High Limit & Circulator APPLICATIONHigh Limit DESCRIPTIONHigh Limit Aquastat Relay LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERL8148E1265