By Joe from Somerset
These work and are of the same quality as the original supplied one. I bought 3 of these (as well as 2 extra tanks/pods), so that I can switch between different flavours throughout the day and not be refilling so often. With the exception of the 0.2 ohm, all the Oxva Unicoil stock atomisers (plus the RBA) require one of these to work and moving the supplied ring from one coil to another, while not exactly difficult, is somewhat messy and awkward. They operate smoothly enough but the thread could be a bit tighter - by adjusting the ring back and forth the connection can become loose. If you have a pod full of juice it's a messy and annoying thing to deal with. Fortunately this only happens once in a while. The range of adjustment is great though - anything from a very tight mtl to a restricted dtl (depending in part on what coil you're using).
