All parts and pieces of the CROSSFIRE™ Burner are made from brass. Unlike other burners made from stainless steel, brass is corrosion resistant and will not rust, which eliminates the need for replacement.
TREE-STYLE CFBT110
Recommended parts:

TREE-STYLE CFBT170
Recommended parts:

TREE-STYLE CFBT230
Recommended parts:

TREE-STYLE CFBT290
Recommended parts:

TREE-STYLE CFBT350
Recommended parts:

TREE-STYLE CFBT410
Recommended parts:

TREE-STYLE CFBT470
Recommended parts:

How to Choose the Right Fire Equipment
Warming Trends Full Catalog
Owner’s Guide and Instruction Manual
Brass Burner Compatibility Chart
Gas Pipe Size and BTU Supply Chart