Replacement small (size) blue (color) headgear strap for the ResMed Quattro Air full face mask. This is the small size, blue headgear strap for the Quattro Air part numbers 62701 (small), 62702 (medium), 62703 (large). The mask with those part numbers comes with the standard size blue headgear strap
. If the standard size strap that came with your Quattro Air is too big you can replace it with this smaller strap.