Anaerobic Culture Jar(Mcintosh and Fildes Pattern), for the safe growth of anaerobes through COLD CATALYST. It consists of a glass Jar approx.23cm. highX13cm. dia., metal covr fitted with two needle valves for evacuating and filling and a sachet for holding the catalyst but without catalyst.The jar can be used both with cylinder as well as with Gas packs.Complete with petri dish holder with pressure gauge.