Honeywell ST7800C1144 Purge Timer 45 min. SKU: 70a7b3ec5573 Category: Honeywell Description Description Provides the prepurge timing for select 7800 SERIES relay modules. Related products Read more Honeywell Flame Sensor C7027A1023 Read more HONEYWELL M9184F1034 150 lb-in, NSR Actuator, Proportioning control, 2 Aux. Switches, 24V Read more R7847A1033 Flame Amplifier, Rectific., FFRT: 2,3sec Read more HONEYWELL M9184D1021 150 lb-in, NSR Actuator, Proportioning control, 24V