Easy to use: Connect a standard 1/4" refrigerant hose and a standard nitrogen pressure regulator to quickly switch between purge, braze, and close modes. Eliminates the need for complicated dial adjustments or flow indicator valves. Extend equipment life: Facilitates smooth nitrogen flow into pipe fittings during purging and brazing. Helps remove refrigerant, moisture, and debris, prevents oxidation and equipment failure, keeps pipes clean, and extends the service life of metal piping, reducing potential repair costs. Precise and afable: Delivers accurate nitrogen flow control for consistent purging and welding results while minimizing gas waste. Durable and compact: Constructed with all-metal materials for enhanced durability. Compact design allows for easy storage in tool bags, toolboxes, or pockets. Resists wear and damage under normal use. Ergonomic design: Features a comfortable knob for easy operation. Material: Metal Color: As shown Note: Installation guide not included. Professional installation is strongly recommended. Verify the item meets your requirements before use. Product updates may occur; slight variations in design or color between batches are possible and do not affect functionality. Package Contents: 1 x Nitrogen Purge Tool (additional items not included) Note: Lighting and display settings may cause slight color differences between the image and the actual item. Measurement tolerance: +/- 1-3 cm.