Mr. Heater Base Camp Pro Series Pre-Formed Mantle for Indoor Propane Gaslights Pre-formed mantle can be used as a replacement item Works with any Mr. Heater indoor propane gaslight Designed for use with burner head 20337 Also fits Paulin and Humphrey indoor gaslights Measures 2-1/8 by 2-1/8 by 2-5/8 inches