Add to Cart Quick view Honeywell 51304537-100 CNI I/O Board Rev B 7272A-1037 Temp Control Honeywell Was: $189.00 Was: $400.00 Honeywell 51304537-100 CNI I/O Board Rev B 7272A-1037 Temp Control Condition: UsedThis board has been inspected and it is in good condition. 12470 SKU: 12470 Weight: 1.00 LBS