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 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request 800074 Tube Holder Triple Variable Flow, only Price on request 800064-10 Tube Holder Housing End, 5/8", for 7-10mm (Packg o Price on request