Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Back Catalog number: 811-9975-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 118SC Sensidyne Gas Detector Tubes, Benzene (1-100 ppm), pk/10 Price on request 200486 Tube Holder Tubing, 1/4" ID x 1/16" W (10 ft) Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charcoal Tube) Price on request