Tube Holder Housing End, 1/2" for 6mm OD Back Catalog number: 800062 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9902-50 Charcoal Tube, Coconut Shell, Large, 200/400mg, 8x110mm, with end caps, 50Pack Price on request 244U Sulphuric Acid 0.5-5.0mg/m3Gas DetectorTube,pk/10 Price on request 179S Sensidyne Gas Detector Tubes, Ethyl Benzene (10-500 ppm), pk/10 Price on request