Impinger Holder, Double, Aluminum, GilAir/HFS Back Catalog number: 200131 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9975-50 Sorbent Tube, XAD-2, 8X110, 400/200, 50/BX Price on request 800072 Tube Holder Single Variable Flow, only Price on request 800075 Tube Holder Quad Variable Flow, only Price on request