Honeywell ST7800C1011 – 20 SECOND PURGE TIMING SKU: 07a3e80a53ff Category: Honeywell Description Description The Honeywell ST7800C1011 PURGE TIMER 20 SECOND TIMING. Related products Read more Honeywell Flame Sensor C7027A1023 Read more Honeywell R7847A1033 Flame Amplifier Read more Honeywell RM7897A1002 On-Off Primary Control Read more HONEYWELL M9184A1019 150 lb-in, NSR Actuator, Proportioning control, 24V