Tube Holder Single Variable Flow, only Back Catalog number: 800072 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9988-10 Sorbent Tube, Chromosorb-106, 10X150, 600/300, 10/ Price on request 200157 U-Tube replacement for P/N 800143 Price on request 800258 Single Variable Flow Kit, 7 x 130mm [Dräger Long Price on request