Crown 40454 Oil Burner Nozzle Line (Oil Line) 3/16" Flare X 3/16" Flare X 12" Length Replaces Westwood S213-12, 3612 Made of genuine Mueller Streamline dehydrated and nitrogen purged sealed copper tubing. Has a consistent dead soft temper. A cleaning and drying process removes moisture and contaminants and is manufactured in accordance with ASTM-B-280 and ANSI-B9.1 refrigerant industry standard.