Coal & Coconut Shell & Wood Based Steam Activated Carbon. HSN CODE -38021000 APPLICATION - WATER FILTERING & PURIFYING PARTS. WATER TREATMENT ( WATER FILTER MEDIA) IODINE VALUE - [COAL 600 IV & 800 IV / COCONUT 900 IV & 1100 IV] MESH SIZE - 4X8,6X12,8X16,8X30,12X3,12X40,16X32 Etc...