[Compact & Portable Design] and compact, it's easy to carry and store. Ergonomic knobs provide comfort during extended use, suitable for professionals on the move [Audible Click Feedback] The features audible clicks for each mode, providing clear feedback when switching functions. This ensures accurate settings every time [Built to Last] Made from brass and reinforced materials, this tool resists wear and tear. It's designed to withstand tough conditions, ensuring reliable performance over time [3-Mode for Easy Operation] Quickly switch between "PURGE", "BRAZE", and "OFF" modes with a simple turn. The 1/4inch flare fitting ensures fast connections to HVAC systems, making setup easy [Enhanced Stability & Efficiency] With fixed gears and an adjustable regulator (50-200 PSI), experience improved stability and efficiency. Perfect for reducing downtime during HVAC operations, Manufacturer: Littimoon