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 811-9902-20 Charcoal Tube, Coconut Shell, Large, 200/400mg, 8x Price on request 200505 Tubing, 1/8" ID x 1/16" W, Clear PVC, (3 ft) Price on request 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request