Sorbent Tube, Porapak-R 6X70, 70/35, 50/BX Back Catalog number: 811-9984-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200115 Tube Holder Housing, 7 x 130mm, 5/8", L247 [Draege Price on request 200114 Tube Holder Housing, 7-10 x 175mm, 5/8", L265 Price on request 811-9903-20 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10 Price on request