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 M9185A1018 60 lb-in, Spring Return Actuator, Proportioning control, 24V Read more Honeywell RM7897A1002 On-Off Primary Control Read more C7012E1104 Honeywell FLAME SENSOR Read more HONEYWELL M9184C1031 150 lb-in, NSR Actuator, Proportioning control, 2 Aux. Switches, 24V