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 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Price on request 800072 Tube Holder Single Variable Flow, only Price on request 800071 Tube Holder Housing End, 5/8", for 1/4" OD, Open E Price on request