4x8 Acid Washed Granular Activated Carbon from Coconut Shell GAC 4x8 AW is an activated carbon which is granular in form. Made from selected grades of coconut shell and then acid washed, it is ideal for many liquid phase applications including the removal of organics from water streams. Its superior level of hardness and low level of impurities make it cleaner than most other carbons and gives it longer life expectancy. It is suitable for drinking water and food grade applications. It is recommended to rinse the carbon from any carbon fines before use. Additional Details ------------------------------ Product description: 4x8 Acid Washed Granular Activated Carbon from Coconut Shell GAC 4x8 AW is an activated carbon which is granular in form. Made from selected grades of coconut shell and then acid washed, it is ideal for many liquid phase applications including the removal of organics from water streams. Its superior level of hardness and low level of impurities make it cleaner than most other carbons and gives it longer life expectancy. NSF certified, it is suitable for drinking water and food grade applications. It is recommended to rinse the carbon from any carbon fines before use.