QRS 3M™ Speedglas™ rubber breathing hose with quick-release coupler

A heavy-duty rubber breathing hose for the 3M Adflo system and 3M Versaflo V-500E compressed air hose apparatus. 3M's new welding visors and visors feature a QRS (Quick Disconnect Swivel Connection) breathing hose that allows the hose to be connected and disconnected with one hand. By adding a special breathing hose adapter (part number 53 35 06), this breathing hose can be used in 3M 9000 welding visors and 3M visors. You can extend the life of the breathing hose by using a hose guard.