The M-978 Flame Resistant Helmet Cover is compatible with the 3M Versaflo M-400 Series. The M 978 Flame Resistant Helmet Cover is a replacement part for use with the M 153SG, and is compatible with the 3M Versaflo M 400 Series. Designed to provide additional protection to both the wearer and the helmet. 7100289612 - 00638060434741
