Xylene (5-1000 ppm) Gas detector tubes, pk/10 Back Catalog number: 143SA Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9980-50 Sorbent Tube, XAD-7, 6X70, 60/30, 50/BX Price on request 103SD Sulphur Dioxide 1-60 ppm Gas Detector Tube, pk/10 Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes 6x70mm, 7-10x110mm, 7-10x150mm, 7-10x175mm) Price on request