Tube Holder Single Variable Flow, only Back Catalog number: 800072 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9963-50 Sorbent Tube, Microlite, 6X70, 200mg, 50/BX Price on request 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request 811-9989-20 Sorbent Tube, Beaded Carbon, 6X70, 140/70, 20/BX Price on request