Supelco GC columns include a range of different brands such as Equity, SLB, SP and SPB columns. Both capillary columns and packed columns are available. The choice of modifications ranges from standard phases such as SPB-1 or Equity-5 to special columns designed for specific analyses. These include, for example, a range of SPB and SP columns as well as Petrocol columns, which have been developed for various applications in the petrochemical industry.