Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubi Back Catalog number: 800135 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 800249 Tube Holder Kit, Quad Variable (Includes 6x70mm, 7 Price on request 800074 Tube Holder Triple Variable Flow, only Price on request