All burner tips are constructed of brass (which are chromium plated) or of stainless steel. The tip, sidearm and entire burner assembly are available in stainless steel. To obtain stainless steel tips with a burner, include the letters SS following the catalog number of the burner assembly desired. To obtain stainless steel tips and sidearms, include the letters SS2 following the catalog number. To obtain the entire assembly in stainless steel, include the letters SS3 following the catalog number. The Single Jet tip and the Q5 tip are available only in stainless steel.