The 3M GVP Breathing Tube assembly is designed for use with the 3M GVP Systems that have 7000 Series Half Face pieces or for use with 7800S Full Face pieces.
3M™ Breathing Tube 520-01-08R01
Used with 3M™ General Purpose Assembly and Welding Assembly R-Series when operated in the supplied air mode. The breathing tube is 14 inches long.