The 3M™ Speaking Diaphragm Assembly FF-400-13 is the replacement assembly for speaking diaphragm used with 3M™ Ultimate FX Full Facepiece Reusable Respirator FF-401, FF-402, FF-403.3M Speaking Diaphragm Assembly FF-400-13 is to be used with compatible products. Replacement part can extend respiratory equipment service life.
and FF-403 (sold separately)
FF-402
Maintains original performance standards of facepiece
Replaceable part can potentially result in respiratory equipment cost savings
Replacement assembly for speaking diaphragm
Replacement part to use with 3M Ultimate FX Full Facepiece Reusable Respirators FF-401
