As rgmwa says, SkyShop no longer sell them but Rod suggested contacting London Fire and Safe at Bowen Hills, Brisbane. I Looked up their website http://www.londonfireandsafe.com.au/ and they sell Halotron extinguishers, Halotron being a replacement extinguishing agent for Halon 1211. However, according to Wiki, it takes a larger volume of Halotron to get the same fire suppression ratings as Halon 1211. How much more I don't know.