50D50U-843 | All-Spark IP/DSI Module
50M56X-843 | Single Stage IFC PSC & ECMx
50E47U-843 | Universal Hot Surface Ignition Module
47D01U-843 | Heat Pump Defrost Control
790-843A1 | Flame Sensor
50F06-843 | Furnace Electronic Fan Timer
49M11-843 | SureSwitch Multi-Volt Contactor
21D64-44 | HotRod EX Nitride Ignitor
50I56D-905 | Intelligent Valve Retrofit Kit
21M51U-843 | 2-stage IFC PSC 80V/120V
21V51U-843 | 2-stage IFC Variable Speed 80V/120V
Universal Heating Controls Counter Reference
