Thermocouple 107374-01 Dayton Master Reddy Desa LP Heater THERMOCOUPLE REPLACES PART NUMBER DESA 107374-01 23" with 5/8" Tip FITS PROPANE AND NAT GAS FORCED AIR HEATERS DESA : TC100VR, TC100VRNG, TC106, TC112, TC113, TC114, TC115 DAYTON: 3VH18A, 3VH19A