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 800072 Tube Holder Single Variable Flow, only Price on request 200524 Tube Holder Tubing, 3/16" ID x 1/16" W (10 ft) Price on request 800232 Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Price on request