Flame King Refillable 1LB Empty Propane Cylinder Tank - Reusable - Safe and Legal Refill Option - DOT Compliant-16.4 oz (2-Pack), green (YSN164-2)

These work perfectly on my propane camping stove and my propane lantern. I love that they can be refilled easily from a 20lb tank which saves me a ton of money. I can refill these for under $1.00 a shot, the disposable tanks are now going for about $5 OR $6 each so this pays for itself pretty quickly I have already refilled the tanks about 3 times each so when you do the math after you refill them 4 or 5 times you have more than broken even. Now it does require a special filling system but again even after adding that cost in I figure after 7 or 8 fills I will break even. Plus the fact they are safe and legal to refill is a serious plus. You can tell these are made better than the disposable tanks, and the fact that 99% of places can't recycle the disposable tanks, these keep TONS of metal waste out of the landfill. So this comes out as one of the few eco-friendly options that I have found that actually saves you money pretty quickly.UPDATE 6-27-2025: Happy to report that these tanks are still performing flawlessly. I have emptied and refilled them no less that 15 times each, probably more. no leaks no stripping of threads and no issues. I will say that you have to be gentle with the set screw, don't torque it down super tight, that can and probably will strip it out as to the screw and the fitting are both made from brass which is a reasonably soft metal. Funny thing, I was stopped by a park ranger in the Tonto National forest and he was super impressed by them, he loved that they were both refillable and most importantly, legal to refill and travel with. Unlike the bulk of 1lb cylinders out there these are DOT compliant so you can transport them on regular roads. He said that in the last 5 years they have had 2 or 3 explosions of the disposable tanks that people toss into the dumpsters. People just toss the tanks in the trash. I live in an area where summer time temps routinely hit over 115 degrees, now put a bear proof dumpster into that mix and it gets really toasty inside that thing, once the tanks hit a certain temp sometimes the emergency relief valve opens and well enclosed dumpster, volatile propane gas, 115 degree summer heat, Propane is more dense than air so it sits at the bottom of the dumpster and some moron tosses a cigarette and boom, these tanks help remove that risk because well you take them home instead of tossing into a hot dumpster, now cars get pretty hot as well so don't leave one of these on your dashboard or the rear deck of your car, again the emergency valve could open and release the gas into your car. I would say this is common sense but sadly that doesn't seem to be so common anymore. Also thinking of common sense do not refill these indoors. When filling them you are purging the air out of them through the set screw until you start to see the propane gas coming out. So in essence you are venting some of the propane into the environment not much but still it's better to do this in a well ventilated and open area where that little bit of gas can be dissipated. Do not smoke while filling them and put out any source of ignition such as a running gas grill or tiki torches. So save some money lower your carbon footprint and buy a few of these, yes you need the special adapter but it is so worth it in the long run.

If you have been refilling the off-the-shelf 1-lb. propane tanks, then this product is for you. Why? Because refilling the single-use tanks is dangerous for three reasons:1. The metal used to make the single-use tanks is thin. These cannot withstand the stress of pressurizing and depressurizing in repeated cycles. Sure, it may work a few times, but how many times before it decides to fail?2. The bleeder valve on the single use tanks needs to be pulled with a needle-nose pliers. Sometimes these pull out completely and then the valve is open and the tank is trash. Sometimes these fail to re-seal and propane just slowly leaks out (check for bubbles with soap). This is why you should avoid storing these inside if possible.3. ALWAYS check the top to make sure the internal rubber ring is installed and intact. If not, the liquid propane will gush out when you try to attach the tank to a valve. If there's a open flame or spark nearby, you will be engulfed in fire. I suspect that the rubber ring in the single-use tanks is not meant for long life and will eventually fall out. It happened to me and I lived through this exact scenario.It's just not worth the risk anymore.This is very EASY to refill thanks to a bleeder valve accessible with an Allen key. If you don't have tools and can't keep track of a standard Allen key, then go buy the Fuel Keg. Same idea but no tools required; you just pull a ring to open the bleeder valve. However, I prefer the security of a bleeder valve that cannot be opened that easily (and I have a toolbox with more Allen keys). You could also get creative and put a small hole in the outside ring of the plastic storage cap where you can store the Allen key. Or a tiny neodymium magnet on the side of the tank could hold your key.Some have said that the tank ring on the bottom/base is not right and the tank wobbles, you have a point! One of my two tanks came like this too. The tank bottom is touching my bench before the ring, thereby allowing the tank to spin or wobble. All they have to do is manufacture the ring ever so slightly wider/taller. Flame King sent me a new tank because of this defect, and they acknowledged that this might be an issue on some of their tanks. The new tank was fine.There are some one star complaints because these arrive with no propane inside. These are empty tanks meant for re-filling. It should be abundantly obvious these cannot be shipped with propane inside.Many are complaining they can't find a place to fill these tanks: kudos; it’s good when one knows their limitations, but this tank is meant for the more advanced do-it-yourself person! You either purchase the refill kit or make your own refill adapter. Then you can refill this using a 20-lb. propane tank from your BBQ, which IS a size that can be refilled or exchanged by your local dealer. If you don't have a 20-lb. propane tank or you have no clue how to handle propane tanks, then a refillable 1-lb. propane tank might not be a safe or viable option for you.Finally, you do NOT need the official Flame King refill adapter kit! You can buy brass propane fittings, brass pipe nipples, and a brass ball valve to make your own refill adapter. My DIY refill adapter works fine with these tanks. Fittings and valves; this is pretty basic standardized stuff. These are functionally no different than any other 1-lb. tank albeit easier to refill thanks to the convenient bleeder.Flame King is good quality and great customer service. Highly recommend.