Charcoal Tube, Coconut Shell, Standard, 50/100mg, Back Catalog number: 801935 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 800135 Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubi Price on request 800073 Tube Holder Dual Variable Flow, only Price on request 811-9985-50 Sorbent Tube, Florisil, 6X70, 100/50, 50/BX Price on request