They are a bit pricey and I didn't really find that much of a use for the pots/tubes BUT I can vouch for their customer service, after a lot of searching I bought one of the sleeves as part of trial. I only really needed the sleeve (For a D sized O2 tank) and a tube to protect the mask. I ordered a couple for size direct from Gearpods in the US, when they arrived there were a load more tubes etc in the parcel together with a handwritten note saying that I hadn't really ordered enough to make the best use of the sleeve so they had thrown in extras to fill it out, which struck me as nice. As it happens we went on to order loads because they are ideal for the job, but they were not to know.