Tube Holder Collar Clip, for 1/4" OD, 1/8" ID Tubing Back Catalog number: 800066 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 200115-10 Tube Holder Housing, 7 x 130mm, 5/8", L247 (pkg of 10) Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charcoal Tube) Price on request