Honeywell RM7897C1000 On-Off Primary Control With Pre & Programmable Post Purge

Honeywell RM7897C1000 On-Off Primary Control With Pre & Programmable Post Purge Delayed Main Valve Yes|Pilot Type selectable|**Note** Requires S7800A1142 Display to program post purge feature.(Sold Separate)You may also like Honeywell TH140-28-01-B Line and low Volt 7-Day Programmable Electronic Thermostat.