Features:1. American standard thread is adopted, the external thread is 7/8-14 Unf left thread, and the internal thread is 1 inch-20 thin thread, the connection is strong and compact, and the tightness is strong.2. High quality brass material, strong and corrosion-resistant, long service life.3. Easy to install and use, without any tools, it can be easily tightened with a knob.4. With its own regulating valve, it can automatically cut off the air flow to avoid overfilling. Product Parameters:Material: BrassWeight: 100GLast Packing:Adapter*1Note:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.