Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles Heater Camping Features QCC1 regulator valve. Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles Heater Builtin safety feature that ensures you NEVER overfill your smaller tank. Propane Gas Refill Adapter Safest and easiest to refill in seconds with NO NEED FOR TOOLS. With this Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles Heater you can use a small 1 LB propane gas cylinder with your regular grill. Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles Heater Perfect for tailgating, catering, camping and anyone who cooks on the grill has barbecues. How to use 1. Put your empty 1 lb cylinders in the freezer for a couple of hours. 2. Attach the coupler to your propane tank 540 lb tank. 3. Attach your 1 lb tank fresh from the freezer to the adapter. 4. Lift your large tank up and turn it upside down and place it securely on the corner of your picnic table. 5. Open the propane gas valve and close it when the flow of liquid propane gas stops. 6. Turn everything right side up and remove the 1 lb cylinder. 7. Repeat as needed. Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles Heater Specification Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles HeaterMaterial Brass Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles HeaterNet weight 4oz114g Package includes 1Propane Gas Refill Adapter Lp Gas 1 Lb Cylinder Tank Coupler Bottles Heater