Tube Holder Single Variable Flow, only Back Catalog number: 800072 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800063 Tube Holder Housing End, 1/2" for 5mm OD Price on request 800249 Tube Holder Kit, Quad Variable (Includes 6x70mm, 7 Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request