the McDonnell & Miller 312200 is the official updated part number that replaces the discontinued 311100

providing a balanced thermal profile in multi-story or large open-plan layouts

Its polished brass construction offers superior corrosion resistance

including the widely serviced 3508 and 6508 series

Precise Fit: Includes a threaded nut to ensure a vibration-resistant

Robertshaw 41-602 Mini Ignitor the McDonnell & Miller 312200The Robertshaw 41 602 Norton Mini Ignitor is a high performance 120V hot surface ignitor engineered for precise ignition in modern residential and light commercial gas furnaces. Designed with a high density recrystallized silicon carbide element, this Norton 41 602 igniter ensures rapid heat up and long term durability under harsh thermal cycling. It functions as a direct OEM furnace ignitor replacement for numerous brands, featuring 5 1 4" lead wires