Thermal stocks a full line of bacteria culture bottles and syringes for anerobic and aerobic testing. All products are produced as media in 10cc glass sealed vials sold individually or per case of 288. A broad selection of chloride ranges are also available from 1- 100,000 ppm and each percentage identified by specific cap color. The majority of lower chloride bottles can be shipped within 1-2 day period from the date of order. Please allow an additional 2-3 days for higher chloride levels. Suggestions for Selecting a Media Extreme differences in dissolved solids (especially chloride ion) between sample and media can give low apparent bacterial population counts. It is not necessary in most cases to exactly match these levels. Most user obtain very good results with NaCl levels in API sulfate reducer media of 1%, 3%, 5%, or 10%, for example. Other salt levels are available.