Sorbent Tube, XAD-2, 6X110, 150/75, 20/BX Back Catalog number: 811-9976-20 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request 800134-10 Tube Holder Collar Clip, for 7/16" OD, 5/16" ID Tu Price on request