Sorbent Tube, Silica (Spec Clean), 7X110, 50/BX Back Catalog number: 811-9970-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800142-10 Tube Holder Collar Clip, for 3/8" OD, 1/4" ID Tubi Price on request 200131 Impinger Holder, Double, Aluminum, GilAir/HFS Price on request 811-9971-50 Sorbent Tube, Silica (H2SO2), 6X70, 150/75, 50/BX Price on request