the 130224 ensures backward compatibility during system maintenance or retrofitting

Whether you are performing a heat pump sensor replacement or troubleshooting a furnace control cycle

making it a standard choice for HVAC tubing and general plumbing

High-Temperature Resistance: Maintains structural integrity under extreme heat to prevent boiler gasket leaks

it offers exact physical and electrical compatibility with a wide range of mobile home furnaces and standard residential air handlers

Johnson Controls T-4000-2151 Plastic Cover the 130224 ensures backward compatibilityJohnson Controls T 4000 2151 Beige Plastic Cover, Includes Thermometer, Vertical, Includes Dial Scales in both Fahrenheit and Celsius, No Setpoint Window