DOZYANT Propane Refill Adapter, LP Gas Cylinder Tank Coupler - Fits QCC1 / Type1 Propane Tank and 1 lb Throwaway Disposable Cylinder Propane Bottle Connector

Good buy works like it should. Fast shipping.

Good fit to refill your 1 lb tanks

The product is well made and no leaks when properly installed. HOWEVER, for this product to effectively transfer propane from a larger tank into the small one pound tank there needs to be a temperature differential between the two tanks with the smaller receiving tank considerably colder than the supply tank. I tried for the first time with the larger tank having been stored outside (45 degrees) and the smaller receiving one pound tank having been stored in my garage (55 degrees). What happened was the one pound tank (it had about 20% of fuel still in the tank) emptied into the larger tank. Videos say to chill the small receiving tank first but I wanted to try just to see what happens. The warmer of the two tanks will transfer propane into the colder of the two tanks. It's a good product that will work if one makes sure there is a temperature differential .... supply warm, receiving tank cold.

It is far better to have a tank that is only half full than to have a tank. So fool you're sure you're going to die if you turn it back on their suggestion to freeze the receiving tank. It's a flat out death sentence. Don't do it. It'll cause massive leakage to the point where it'll put itself out from freezing the release valve inside your nozzle. Thankfully or I would have died. Just fill it at room temperature. Much safer

It served the purpose I intended it for.

I run my Mr buddy heater and bbq for camping a bunch and this makes it cheap to refill.Put it on, turn big tank upside down and open valve. Once it stops hissing turn off and purge it. Then do it another few times till it weighs about 2 lbs

Does what it is supposed to, easily and well.

I was unfamiliar with using propane and especially refilling the 1 lb bottles from a larger tank. This seemed like a decent price and the reviews were favorable.For anyone looking to do the same thing I do which is use a small propane heater which runs off of 1 lb tanks this is definitely a better value than buying pre-filled tanks. Attaching the large black knob end directly to the 20 lb tank is easy. It has a nice grip to it so it could be attached firmly. The 1lb tanks screw easily into the smaller brass side. I always make sure to snug it down and when removing it I just hold the brass fitting to loosen the tank slightly then the tank unscrews so that I keep my hands well away from any vented propane.I did purchase brass caps to put on the refill tanks in between uses. If you use those caps with a gasket inside of them be careful the gasket doesn't stick to the 1lb tank. If you attach a tank and that extra gasket gets in there, the valve won't completely open so it's more difficult to fill the 1 lb tank to capacity. Otherwise it's been a flawless process and I have saved a lot of money on propane. I just emptied the last of my first 20lb tank with no issues. The last bit doesn't want to come out quite as readily. Be sure to use the freezer technique on the 1lb tanks & have your large tank as warm as possible by sitting it in the sun etc & you should have no concerns. The greater the pressure deferential between the two the faster the transfer will be & your tanks will fill closer to their capacity.