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 RM7800E1010 Programmer Read more Honeywell R7847A1033 Flame Amplifier Read more C7027A1049 Honeywell Flame Sensor Read more HONEYWELL M9184D1021 150 lb-in, NSR Actuator, Proportioning control, 24V