Tube Holder Kit, Quad Variable, 6 x 70mm Back Catalog number: 800231 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9969-20 Sorbent Tube, Silica, DNPH, 6X110, 300/150, 20/BX Price on request 7015377P Tube Tip Breaker, Package of 5 Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request