Sondiko Butane/Isobutane Refill Adapter, Fuel Transfer Device, Gas Converter Isobutane Canister Shifter, Gas Saver Plus for Fuel Canister, Backpacking Camping Stove, Burners

Worked great at transferring fuel from larger, heavier canister to a smaller, lighter one.

The media could not be loaded. No soy muy hábil con este equipo, pero si funciona como adaptador. De momento aún no puedo recargar los tanques vacíos de gas quiAs porque no tengo la práctica.

Ah, the joys of transferring pressurized/liquidized gas between containers!Before I get to this product, just a little PSA on refilling gas canisters.• It can be dangerous. Use this product outdoors, and even then, be careful to avoid any ignition mechanisms.• There is a bit of science to it. Pressure, volume, temperature, transfer rate (see Ideal Gas Law). It’s a good idea to research this a little bit before using this.• Do not overfill the canister…bad things can happen with an overfilled canister, especially if heat/sunlight is involved. Generally, do not fill more than 80% of a canister with liquid gas. There are multiple ways to approximate this. But the best way to fill canisters is by net weight (i.e. weighing the filled canister and then subtracting the “tare weight” of the canister).About this adapter kit:• The valve unit is a bit beefier than others and it works well enough. The window is a nifty feature, as is the pressure relief button…these three factors being the “value-adds” to the simpler valves. Functionally though, I especially like the release button. This is such a time saver to: 1. Initial release of the target can prior to transfer, and 2. Releasing some pressure/gas to top off the liquid, or letting some gas out to get back below the 80% fill threshold. Without the button, one has to use a pin in the canister nozzles to release some pressure from the target canister. But button, pin, or valve lever, you are releasing flammable gas into the proximal air, so again…outdoors!• The kit only includes one each of the butane and propane adapters. At least by my quick check, the added cost of this kit over other listing with just the valve unit is still slightly less than the retail cost of the adapters…so there is still value there, especially considering the better valve and little case…but two adapters each would have been better for “like kind” transfers (beyond isobutene).• Also, to my point above, I wouldn’t normally transfer one type of gas into a canister of a different type…but there are cost, weight, temperature, and other factors among fuels; so to each their own. But if I did, I’d be somehow repaint/relabel the canister with whatever gas is in it.

So, I hate carrying extra gear when backpacking. Will this half (or more) empty camping fuel canister last the trip? Better pack an extra. Or just carry the new one, knowing it is definitely enough. And now I have two half used canisters...This little doodad does comes with some adapters, I cannot speak to those. I only use isobutane. Partially because the included instructions from propane are twice as long and have four times as many warnings, I prefer to be carrying a little less of a bomb while camping. But, especially with Helene's impact, I had a couple of isobutanes to test on.The instructions are very clear on doing this outdoors in a well ventilated area, which initially I was skeptical of. Sure, whenever you are threading onto a canister there is a little puff but not much. Thread both, invert to drain, easy peasy, right? Wrong. Eventually the pressure in the bottom canister gets to be too much and it stalls, especially since the one-way valve prevents air from escaping the bottom unit. So you have a little vent button. Prepare to smell a lot of isobutane, and worry about the tiniest ignition source. Do it outside, heed the warnings. So, with the button and some swirling (not sure if that did anything, but it made me feel like I was helping, like shaking a polaroid), I got almost all of the top canister drained. It does have a method to force that last bit out using thermal expansion (cool it in the fridge for an hour, then pour hot water on the upturned base of the canister) which seems scientifically sound but more involved than I was up for to get a few measly mLs out. And, since I didn't have a full can to weigh, I was worried about overfilling as well (the included instructions also mention this, and it's a great safety tip, props).So, it worked, no spillage, just some lost to necessary venting. The window is...there, I can't say I used it much except when using the vent button, but I suppose it was moderately useful then. It certainly saves me piling up haf empty cans for shorter trips, and seems built to sufficient tolerances and durable enough. Only time will tell on durability of the o-rings, nothing included about how or if to care for the, just to check before use. But my camping stove gets plenty of similar chemical exposure and hasn't rotted yet, hopefully these hold as well. Definitely a great doodad if you are that "buy another rather than go into the backcountry and run out" person with a pile of partially used canisters.