Aobbmok Safest QCC1 Regulator Valve Propane Refill Adapter LP Gas Cylinder Tank Coupler for Steel Propane Cylinder With Type 1 and 1 LB Throwaway Disposable Cylinder - 100% Solid Brass Accessory

?QCC1 regulator valve ?Built in safety feature that will ensure you NEVER over-fill your smaller tank ?Safest and Easy to refill in seconds with NO TOOLS required ?This adapter will allow you to use a small 1 LB propane cylinder with your standard BBQ Grill ?Great for Tailgaters, Caterers, Campers, And anyone that cooks on the grill/has cookouts **CAUTION** Due to the highly flammable gases, you MUST be outdoors to refill your 1 lb cylinder tank. Stay clear of flames and sparks. For maximum filling, place your cylinder tank in the freezer for up to 30 mins before filling it. Put your empty 1 lb cylinders in a freezer for a couple of hours.   Attach the coupler to your 5lb to 50 lb propane tank. Attach your 1 lb. tank (fresh from the freezer) to the adapter. Pick up your large tank and turn it upside down and rest it securely on the corner of your picnic table. Open the propane valve and shut it off when the flow of liquid propane stops.  Turn everything right side up and remove the 1 lb. cylinder. Repeat as necessary.  NOTE: You need to turn your bulk tank upside down so liquid flows out of it. You need to chill your empty tanks so that there is a lower vapor pressure in the empty tank than the bulk tank.  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.