Sorbent Tube, Silica Gel, 8X110, 300/150, 50/BX Back Catalog number: 811-9967-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800139 Tube Holder Adapter for 1/2" Ends Price on request 800249 Tube Holder Kit, Quad Variable (Includes 6x70mm, 7 Price on request 200131 Impinger Holder, Double, Aluminum, GilAir/HFS Price on request