Gone are the days of trashing your 1 Lb propane bottles to buy new full ones. With this adapter you can refill your 1 Lb bottles from a 20 to 30 Lb bottles typically used for gas grills etc. To maximize filling you can put an empty 1 Lb bottle in a fridge or freezer for several minutes before filling. This will help any residual gasses to condense to liquid allowing more free space for new gas vapor to enter the bottle. -Solid brassWeight - 6 ounces
