Sorbent Tube, Porapak-Q 6X110, 150/75, 50/BX Back Catalog number: 811-9983-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800249 Tube Holder Kit, Quad Variable (Includes 6x70mm, 7-10x110mm, 7-10x150mm, 7-10x175mm) Price on request 800136-10 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubing (Packg of 10) Price on request 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoal Tube) Price on request