The White-Rodgers 21D64-44 120V Universal Nitride Ignitor Upgrade Kit is a part of the HotRod Series which offers you a Silicion Nitride upgrade that operates on 120V. This kit is great for converting flat or spiral silicon carbide hot surface ignitors to the long-lasting, durable silicon nitride. For use in furnace, boiler or water heater applications, Includes stripped end wires and 2 ceramic wire connectors. 14.5" leads with stripped ends.