Triple Variable Tube Holder Kit, 6 x 70mm Back Catalog number: 800230 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9969-100 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 100/BX Price on request 811-9977-20 Sorbent Tube, XAD-2, 6X110, 120/60, 20/BX Price on request 811-9963-50 Sorbent Tube, Microlite, 6X70, 200mg, 50/BX Price on request