ideal for high-limit boiler or tank applications

Compact Form Factor: The 1/4" NPT footprint and lightweight aluminum body allow for easy installation in tight furnace or dryer cabinets

66 inches of water column

The Lennox 18J37 furnace safety switch ensures precise HVAC high-limit protection and is compatible with a wide range of popular Lennox G23

Unlike most models in the MEP-4000 series

York S1-025-42694-000 Wire Harness R-407C ideal for high-limit boiler orThe York S1 025 42694 000 Wire Harness is a critical OEM component designed for precise signal transmission and power distribution within residential and light commercial HVAC systems. This replacement wiring harness ensures reliable connectivity between the control board, fan motors, and various sensors, effectively mitigating voltage drops and intermittent circuit failures. Engineered to meet exact Johnstone Supply equivalent specifications and York