Good news: Called Lifeline USA and the manager who seemed very knowledgable said the Zero 2000 2.25 & 4 Liter systems are both FIA homogulated. He said the only decal on these systems is the one stating the details (weight, size, pressure, Date of Service). He also said recertification/service on the 2.25lt bottle is $95 and there are places in Texas that can do it. Hope this helps.
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