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 800230 Triple Variable Tube Holder Kit, 6 x 70mm Price on request 800062-10 Tube Holder Housing End, 1/2" for 6mm OD (Packg of 10) Price on request 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoal Tube) Price on request