Single Variable Flow Kit, 6 x 70mm (Standard Charc Back Catalog number: 800253 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200486 Tube Holder Tubing, 1/4" ID x 1/16" W (10 ft) Price on request 811-9969-100 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 100/BX Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request