SHINESTAR Universal 1lb Propane Tank Refill Adapter Mini Propane Fill Adapter for Disposable Small Propane Bottle LP Gas Cylinder Canister Filler Coupler - Solid Brass Valve Accessories

You will needn't to buy another cylinder again, you can use this adapter to refill your 1lb(16.4oz) disposable bottle. There are instructions with this adapter. 1: Put your empty 1 lb cylinders in a freezer for a couple of hours. 2: Attach the coupler to your propane tank (5-40 lb tank). 3: Attach your 1 lb tank (fresh from the freezer) to the adapter. 4: Pick up your large tank and turn it upside down and rest it securely on the corner of your picnic table. 5: Open the propane valve and shut it off when the flow of liquid propane stops. 6: Turn everything right side up and remove the 1 lb cylinder. 7: Repeat as necessary. Pay attention to : 1:You need to turn your bulk tank upside down so liquid flows out of it. 2:You need to chill your empty tanks so that there is a lower vapor pressure in the empty tank than the bulk tank. 3:Your refilled tanks will not be totally full, but this is good because over filling can cause them to vent gas if left in a hot place.