R1234ZE(E) (1,3,3,3-Tetrafluoropropene) Mar 11, 2020 0:57:38 GMT Quote Select PostDeselect PostLink to PostBack to Top Post by CCL2F2 on Mar 11, 2020 0:57:38 GMT I was referring to this www.youtube.com/watch?v=Alm3k8CHNY8 when you first opened it up, the steel parts of the rotor and the inside of the casing look copper colored.Here’s the cheapest I could find on ebay www.ebay.com/itm/Fike-FM-200-HFC227-Tank-with-128-lbs-of-agent/333394399846 although it seems like a big gamble if it doesn’t work.