2 pcs Head Harness Strap Replacement for 3M 6897 fits 6700 6800 6900 Series

2PCS Replacement Head Harness Assembly 6281 for 6000 series 3M 6191 6291 6391

2 pcs Head Harness Strap Replacement for 3M 6897 fits 6700 6800 6900 Series

1/2X For 3M Head Harness Assembly 6281 Strap Respiratory Replacement 6000 series