Key Features Warranty: 1 year Ideal for pumped systems Tamperproof adjustment option Low-limit model Bi-metal strip sensor Surface mounted Honeywell Low-Limit Pipe Thermostat Overview This Honeywell cylinder thermostat provides a low-limit function in pumped systems, is surface mounted and offers a tamperproof adjustment option. With its bi-metal strip sensor, this heating control unit powers on/off your hot water cylinder to reach your desired water heating temperature. Range Aquastat EAN 5023220200253 MPN L641B1004 Product Code 102919 Thermostat Type Pipe Thermostat Sub Type Mechanical Pipe Thermostat Colour White Warranty (Years) 1 Material Plastic