Tube Holder O-Ring Kit Back Catalog number: 800238 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200524 Tube Holder Tubing, 3/16" ID x 1/16" W (10 ft) Price on request 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request 200114 Tube Holder Housing, 7-10 x 175mm, 5/8", L265 Price on request