This is not a complete mask-just a strap. Color: gray (or a little color difference, does not affect the use).
Replacement Head Strap Headgear Shoulder Belt For ResMed F10 Or F20 CPAP Mask UK
Replacement Head Strap Headgear Shoulder Belt For ResMed F10 Or F20 CPAP Mask
Replacement Head Strap Headgear Shoulder Belt For ResMed F10 Or F20 CPAP Mask..
Replacement Head Strap Headgear Shoulder Belt For ResMed F10 Or F20 CPAP Mask ?
UK Replacement Head Strap Headgear Shoulder Belt For ResMed F10 Or F20 CPAP Mask