Sorbent Tube, Microlite, 6X70, 200mg, 50/BX Back Catalog number: 811-9963-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800136 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request 800071-10 Tube Holder Housing End, 5/8", for 1/4" OD, Open E Price on request 800072 Tube Holder Single Variable Flow, only Price on request