Tube Holder Single Variable Flow, only Back Catalog number: 800072 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9965-50 Sorbent Tube, Silica Gel, 6X70, 150/75, 50/BX Price on request 200131 Impinger Holder, Double, Aluminum, GilAir/HFS Price on request 800165 Sorbent tube adapter nipple for Dual manifold High Price on request