Charcoal Tube, Coconut Shell, Standard, 50/100mg, Back Catalog number: 801935 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 800238 Tube Holder O-Ring Kit Price on request 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg o Price on request 811-9984-50 Sorbent Tube, Porapak-R 6X70, 70/35, 50/BX Price on request