Sorbent Tube, XAD-7, 6X70, 60/30, 50/BX Back Catalog number: 811-9980-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9974-50 Sorbent Tube, XAD-2, 8X110, 150/75, 50/BX Price on request 811-9903-20 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10 Price on request 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request