Robertshaw 41-418 Hot Surface Ignitor. Recrystallized Silicon Carbide.
Lead Length 5-1/4"
Ceramic block style B, Terminal block style C.
Replaces GOODMAN MFG. B1401018 Exact , MODINE MFG. 5H75032A Exact , STARLITE IG1121 Functional. 
Includes bracket
120VAC
Robertshaw 41-400 Series Norton Hot Surface Ignitors deliver dependable ignition in heating systems of every description. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment.
The 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar™) which combines physical and thermal strength with stable electrical properties. 
These are designed to reach ignition temperature(s) within 17 seconds. 
They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and
electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
120 VAC models. Some hot surface modules are rated for 208/240 volts input, however they step the voltage to ignitor down to 120 VAC.


Caution!
Ignitors (also referred to as Igniters) should be handled with care as the ends are very fragile.