RH acknowledged the issue re: 220 oil availability in the U.S. and don't yet have a solution. A former dealer did stock the 220 oil, but I'm not sure how long ago they stopped trading. Dream Steam says their 220 is the same formula and I've asked RH if they can confirm. In the end, it would cost ~$7 more to ship 500ml of the Dream Steam 220 vs. the local 320. Not much in the entire scheme of things and 500ml will last a long while, so I ordered some. Stay tuned for a review.