Music City Metals 76112 Zinc Plated Steel Venturi Replacement for Select Thermos Gas Grill Models, Set of 2 Listing is for 2 venturi tubes. 7.75 x 2.3125 inch zinc plated steel L-shaped venturi Original burner head may not be compatible with replacement venturi. Use with one of the following burner heads: 20902, 21002.