The Scandia SN-HG-PG-HIGHLMT-WIRES is a set of replacement wires designed for use with the high limit switch in gas heaters. The high limit switch is a critical safety component that prevents the heater from overheating by shutting it off when temperatures exceed safe operating limits. These replacement wires ensure reliable electrical connections for proper function of the high limit switch, helping to maintain the safety and efficiency of your gas heater.