Replacement junction box for Heatilator, Heat N Glo, Majestic, and Monessen gas and wood stoves and fireplaces. Used in natural gas (NG) and propane (LP) units. Fits the following models:

Heatilator Gas Fireplaces:

• GDCH60
• GDCH60L
• GDCH60I
• GDCH60LI
• GDCH60iV
• GDCH60LiV
• GDCH60V
• GDCH60LV
• EHS3633
• EHS3633I
• GBi25
• GBi25L
• GC421
• GC421L
• GC421E
• GC421LE
• GB4336
• GB4336L
• GB4336i
• GB4336iL
• GB4942
• GB4942L
• GB4942i
• GB4942iL
• ICON60iH
• ICON60iT
• ICON100iH
• ICON100iT
• IDV4833IT
• IDV4833IH
• IDV6247IT
• IDV6247IH
• GNTC50
• GNTC50B
• GNTC50E
• GNTC50EB
• GNTC80
• GNTC80B
• GNTC80E
• GNTC80EB
• NANOV

Heatilator Wood Stoves:

• A36C
• A36CH
• A42C
• A42CH
• SC60

Heat N Glo Wood Stoves:

• EM-42
• EM-415
• EM-415H
• EM-485
• EM-485T
• EM485TH

Majestic Wood Fireplaces:

• SA36C
• SA42C

Monessen Gas Fireplaces:

• BUF36
• BUF36-R
• BUF42
• BUF42-R

HHT part # SRV21878
Replaces old part number 21878
OEM HHT part

May fit other models, please check your owner's manual for part number compatibility.