Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Back Catalog number: 800149 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200484 Tubing, 1/4" ID x 1/16" W (3 ft), Clear Vinyl, Gil Price on request 811-9989-20 Sorbent Tube, Beaded Carbon, 6X70, 140/70, 20/BX Price on request 800063 Tube Holder Housing End, 1/2" for 5mm OD Price on request