Charcoal Tube, Coconut Shell, Standard, 50/100mg, Back Catalog number: 801935 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 811-9903-50 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10 Price on request 800063 Tube Holder Housing End, 1/2" for 5mm OD Price on request 800064 Tube Holder Housing End, 5/8", for 7-10mm Price on request