ChromCart HPLC guard column CC 8/4 LiChrospher 100 RP18, 5 µm length: 8 mm, ID: 4 mm pack of 3 suitable for analytical columns/cartridges with 4 or 4.6 mm ID: – for EC columns by the use of guard column adapter EC (REF 721359) – for ChromCart cartridges by the use of CC connecting kit (REF 721690)