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 M9184D1021 150 lb-in, NSR Actuator, Proportioning control, 24V Read more HONEYWELL M9185A1018 60 lb-in, Spring Return Actuator, Proportioning control, 24V Read more Honeywell Burner Control RM7800G1018 Read more Honeywell Wiring Subbase Q7800A1005