Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Back Catalog number: 800149 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800139 Tube Holder Adapter for 1/2" Ends Price on request 800062-10 Tube Holder Housing End, 1/2" for 6mm OD (Packg of Price on request 800074 Tube Holder Triple Variable Flow, only Price on request