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 ST7800A1062 Purge Timer 90 seconds Read more HONEYWELL M9185C1006 60 lb-in, Spring Return Actuator, Proportioning control, 2 Aux. Switches, 24V Read more Honeywell Wiring Subbase Q7800A1005 Read more Honeywell RM7897A1002 On-Off Primary Control