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 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg o Price on request 200102 Tube Holder Housing, 6x70mm, 1/2" OD, S225 Price on request 811-9968-50 Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Price on request