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 800229 Tube holder plug for manifold Price on request 800497-1 Tube Breaker Kit, Blue, LFS-113 Price on request 800231 Tube Holder Kit, Quad Variable, 6 x 70mm Price on request