An economical answer to your soldering needs. Works without bottled oxygen. No oxygen or air supply needed. Simply draws from the air that surrounds us. Offers flame versatility with its three interchangeable tips: Tip #1 (Small) up to 2000°F (1200°C) • Tip #2 (Medium) up to 2300°F (1250°C) Tip #3 (Large) up to 2400°F (1300°C). Includes also a regulator for the disposable propane tank and the hose. Made in Brazil.