3mL Cartridge w/500mg Amberlite XAD-7, 50/pk Back Catalog number: 2193 Availability: In the manufacturer's stock Price on request - + Recommended 730402 Chromab. columns C18 f, 3mL, 200mg 134,15 € 731802 Chromafix C18 (M) 208,08 € 731744 CHROMAFIX HR-X (M) 249,28 €