Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Back Catalog number: 800232 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9985-50 Sorbent Tube, Florisil, 6X70, 100/50, 50/BX Price on request 800238 Tube Holder O-Ring Kit Price on request 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Price on request