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 811-9977-20 Sorbent Tube, XAD-2, 6X110, 120/60, 20/BX Price on request 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request 200504 Tubing, 1/8" ID x 1/16" W, Clear PVC, (10 ft) Price on request