Overview: Well-built, heavier, bigger, and safer Easy to install, with heel handle-for tightening Fits all 1 lbs. Small bottle and easy to refill Automatically shut off air flow when pressure is reached (rubber ring provides a good seal) Ideal for camping or outdoor cooking Feature: QCC1 control valve Built-in safety function ensures that your small water tank will never be overfilled The safest and easiest filling in seconds without tools This adapter allows you to use a small 1 pound propane cylinder with your standard grill Ideal for tailgate service staff, food service staff, campers, and anyone who cooks on the grill/has a chef Keep away from flames and sparks To maximize filling, put the cylindrical reservoir in the refrigerator for up to 30 minutes before filling Product information: Material: Brass Color as shown How to use: BBQ Propane Tank Globe Valve Insert the tip of the adapter nose into the 20-50 lb barbecue propane tank filling connection Turn the heel handle adapter clockwise for a comfortable fit Screw the 1 pound cylindrical propane tank clockwise into the adapter Turn the grill upside down and open the grill valve You will begin to hear the sound of propane gas entering the 1 pound cylinder. When a certain pressure is reached, the adjusting valve of the adapter will automatically shut off the air flow to prevent over-filling, so please sit down and let it fill itself. When the water tank no longer makes a sound, just close the grill valve and remove the water tank from the 1 pound propane cylinder Packing list: 1 X Fuel tank filling adapter