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 200486 Tube Holder Tubing, 1/4" ID x 1/16" W (10 ft) Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request 800165 Sorbent tube adapter nipple for Dual manifold High Price on request