Tube Holder Dual Variable Flow, only Back Catalog number: 800073 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800258 Single Variable Flow Kit, 7 x 130mm [Dräger Long Price on request 103SD Sulphur Dioxide 1-60 ppm Gas Detector Tube, pk/10 Price on request 800134 Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tu Price on request