Triple Variable Tube Holder Kit, 6 x 70mm Back Catalog number: 800230 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9968-50 Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Price on request 801935 Charcoal Tube, Coconut Shell, Standard, 50/100mg, Price on request 811-9975-50 Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Price on request