?Air hose reel retracts 3/8" x 50', constructed of heavy duty industrial steel; high quality commercial rubber hose with solid brass fittings, rated to 300 PSI 3/8 ". ?Air hose reel for air and water use, shatterproof full flow solid swivel hose inlet connection to prevent leaks ?The steel guide arm of the air reel can be easily adjusted to different angles, and the air hose reel can be stably assembled on the wall, ceiling or floor.