Tube holder plug for manifold Back Catalog number: 800229 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9966-50 Sorbent Tube, Silica Gel, 6X70, 100/50, 50/BX Price on request 800259 Single Tube Holder Kit, 7-10 x 110mm Price on request 800064 Tube Holder Housing End, 5/8", for 7-10mm Price on request