Sorbent Tube, XAD-2, 8X110, 150/75, 50/BX Back Catalog number: 811-9974-50 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800139 Tube Holder Adapter for 1/2" Ends Price on request 800165 Sorbent tube adapter nipple for Dual manifold High Price on request 800073 Tube Holder Dual Variable Flow, only Price on request