Honeywell, Inc. ST7800C1136 ST7800 Plug-in Purge Timer SKU: 015484df8e89 Category: Honeywell Description Description Provides the prepurge timing for select 7800 SERIES relay modules Related products Read more Honeywell RM7800L1053 Burner Control Read more Honeywell Q7800B1003 Wiring Subbase Read more HONEYWELL M9184F1034 150 lb-in, NSR Actuator, Proportioning control, 2 Aux. Switches, 24V Read more HONEYWELL M9185D1004 60 lb-in, Spring Return Actuator, Proportioning control, 24V