Features_x000D_ _x000D_ 1. Easy filling: The 90 degree elbow design makes it easier for gas to flow into the small gas cylinder. Simply connect it to the large can and can to refill within 1 minute._x000D_ 2. Upgrade design: Equipped with a propane switch control valve to prevent gas leakage when connecting gas cylinders. You can easily and safely control the refilling process._x000D_ 3. Quick monitoring: Quickly check the remaining gas in the large tank to avoid inconvenience caused by insufficient gas during the filling process._x000D_ 4. Safety structure: corrosion-resistant solid brass provides better sealing effect. In addition, the built-in safety function can effectively prevent the danger of overfilling gas cylinders._x000D_ 5. Easy to use: You can easily refill a 1-pound gas cylinder multiple times without the need for tools. Help you save on the cost of purchasing new green propane cylinders._x000D_ _x000D_ Specification_x000D_ Material: Solid brass_x000D_ Entrance: QCC1/POL Type 1_x000D_ Export: 90 degree elbow, 1 inch x 20 inner disposable cylindrical thread_x000D_ Other: 1/4 "propane switch control valve and 3-color coded dial_x000D_ Function: Inflate a 1-pound gas cylinder with a large gas cylinder to save the cost of purchasing a new green propane cylinder._x000D_ Color: Yellow_x000D_ Size: 16 x 5.5 x 6 cm_x000D_ Weight: 270 g_x000D_ _x000D_ Package Include:_x000D_ 1x Top-Rated Propane Refill Elbow Adapter with Tank Gauge