Propane Gas Filling Adapter/Adapter Lp 1 Lb Cylinder Tank Coupler Bottle Heater Safe Legal Propane Bottle Cartridge Alternative Features:This coupler fills cylinders in one minute or less! A safe, legal alternative to filling propane bottles. Solid copper coupler attaches to the propane tank for easy propane bottle filling. The purchase is for 1 propane tank adapter only Filling adapterConnect the smaller cylinder with this adapter and it will equalize the pressure between the two tanks. Description:This adapter will save your endless money by complementing your own 20 lb tank rear tanks. It is great for ice fishermen, mountain men outdoorsmen,and all campers and power outages. Specification:Material: BrassColor: YellowSize: 62*30*30mm Accessories Type: Bottle Power Type: PropanePower Supply: GasPackage Included:1 x Propane Filling Adapter/AdapterRemarks:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee that the style is the same as shown in the pictures.2. Due to manual measurement and different measurement methods, please allow 1-3cm deviation. Thanks!