Tube holder plug for manifold Back Catalog number: 800229 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9988-10 Sorbent Tube, Chromosorb-106, 10X150, 600/300, 10/BX Price on request 200104-10 Tube Holder Housing, 5 x 150mm, 1/2", S255 (pkg of 10) Price on request 811-9903-20 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10x110mm, with end caps, 20Pack Price on request