Resideo - Honeywell Home L4008E1040

The Remote Bulb High Limit Aquastat by Honeywell Home (model L4008E1040) delivers reliable boiler safety and precise temperature control. With a manual reset and a temperature range from 110 to 270°F, this device protects your boiler from overheating while keeping system performance consistent. The 5-1/2" cap provides a robust sensing element for dependable operation.

• Manual reset safety: ensures a deliberate restart after an overheat condition.
• Extended temperature range: 110–270°F for versatile boiler control.
• Remote bulb design: simplifies installation and remote sensing.
• 5-1/2" cap: provides a robust sensing element for dependable operation.
• Easy compatibility: fits standard residential boilers and Honeywell Home control systems.

Built to last, this high limit aquastat offers durable construction and seamless integration with your existing boiler safety setup, helping you maintain energy efficiency and reliable home comfort.