Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Back Catalog number: 811-9968-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800075 Tube Holder Quad Variable Flow, only Price on request 811-9983-50 Sorbent Tube, Porapak-Q 6X110, 150/75, 50/BX Price on request 811-9970-50 Sorbent Tube, Silica (Spec Clean), 7X110, 50/BX Price on request