Sep-Pak AC2 Plus Short cartridges contain low ash content activated carbon for applications such as the concentration of pesticides and herbicides in water or food samples. Sep-Pak AC2 is used in Japan Pesticide Method #17. These short body cartridges can attach easily to pumps and syringes for reliable, positive-pressure flow to speed up the sample processing time. They can also be fitted with removable reservoirs and used on vacuum-assisted flow devices and certain automated systems.