Charcoal Tube, Coconut Shell, Standard, 50/100mg, Back Catalog number: 801935 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 800135-10 Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubi Price on request 800072 Tube Holder Single Variable Flow, only Price on request 800259 Single Tube Holder Kit, 7-10 x 110mm Price on request