Sorbent Tube, Porapak-P, 6X110, 100/50, 50/BX Back Catalog number: 811-9982-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 801935 Charcoal Tube, Coconut Shell, Standard, 50/100mg, Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request 800139 Tube Holder Adapter for 1/2" Ends Price on request