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 800075 Tube Holder Quad Variable Flow, only Price on request 800259 Single Tube Holder Kit, 7-10 x 110mm Price on request 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request