90-degree elbow design makes the adapter easier for gas to flow to the small cylinders. Simply attach to your large tank and your 16oz tanks for refilling in within a minute. Features with a propane ON-Off control valve, which prevents gas leaks when connecting gas cylinders. You can easily control the refilling process safely. Corrosion-resistant solid brass provides a better sealing effect.

the built-in safety features effectively prevent the danger of overfilling the gas cylinder. You can quickly check the remaining gas of your large tank to avoid the inconvenience caused by insufficient gas during the filling process.

Material: Solid Brass Outlet: 1"-20 Female Throwaway Cylinder Thread Safety Switch: On-Off Control Valve

Because gas is highly flammable, it can only be used outdoor and stay away from flames and sparks. Make sure the valve is closed before refilling for safety. Put the empty 1LB cylinders in a freezer for several hours for quicker refills.

  Step 1: Turn off the valves, attach the adapter's QCC-1 connection to the tank valve and tighten it securely. Then put your 5-40lb propane tank upside down.

Step 2: Connect the 1"-20 Female Throwaway Cylinder Thread to the empty 16oz propane fuel cylinder. Step 3: Open the 5-40 propane tank cylinder valve.

Step 4: Then turn on on-off control valve and let the gas flow until the tank is full.