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 811-9903-20 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10 Price on request 800253 Single Variable Flow Kit, 6 x 70mm (Standard Charc Price on request 800062 Tube Holder Housing End, 1/2" for 6mm OD Price on request