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 M9194E1000 300 lb-in, NSR Actuator, Proportioning control, 1 Aux. Switch, 24V Read more HONEYWELL M9184D1021 150 lb-in, NSR Actuator, Proportioning control, 24V Read more Honeywell RM7897A1002 On-Off Primary Control Read more C7027A1049 Honeywell Flame Sensor