Atwood / Hydro Flame Furnace Burner Orifice 34004 No Longer Available Under This Part Number
Note: This orifice has been replaced by new part number (link): 31077
Orifice Stamp Number: #49
Applicable to 40,000 BTU models (links in blue):
2540 2 Stage
8940-DC-I
8940-AC-I
8940-DC-II
8940-AC-II
8940-DC-III
8940-AC-III