Tube Holder Kit, Quad Variable (Includes 6x70mm, 7 Back Catalog number: 800249 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200112 Tube Holder Housing, 7-10 x 150mm, 5/8", L255 Price on request 811-9965-50 Sorbent Tube, Silica Gel, 6X70, 150/75, 50/BX Price on request 800165-10 Sorbent tube adapter nipple for Dual manifold High Price on request