Sorbent Tube, Porapak-N, 6X70, 88/44, 50/BX Back Catalog number: 811-9981-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800071-10 Tube Holder Housing End, 5/8", for 1/4" OD, Open E Price on request 200104 Tube Holder Housing, 5 x 150mm, 1/2", S255 [Kitaga Price on request 811-9962-50 Sorbent Tube, Chromosorb-102, 8X110, 100/50, 50/BX Price on request