Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Back Catalog number: 811-9968-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 106SC Carbon Monoxide 1-50 ppm Gas Detector Tube, pk/10 Price on request 200115 Tube Holder Housing, 7 x 130mm, 5/8", L247 Price on request 200115-10 Tube Holder Housing, 7 x 130mm, 5/8", L247 (pkg of 10) Price on request