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 200115-10 Tube Holder Housing, 7 x 130mm, 5/8", L247 (pkg of 10) Price on request 800170 Tube Holder Hose Barb Fitting Price on request 200187 Tube Holder Adapter, 3/16" to 1/4" Ends Price on request