3M M DC22DD ~ Maintenance Sorbent Drum Cover M R2001 07169(Aad) Environmental Safety Product High Capacity 25 Ea Cs 7000051879 Line_Speedglas The 3M E A Rfit Dual Ear Validation Color_Red The 3M E A Rfit Dual Ear Validation System uses F MIRE (Field Microphone In Real Ear) technology to generate a Personal Attenuation Rating (PAR) SA 1500 is used with the 3M Dual Airline Front Mounted Adapter Kit MDC22DD MR2001 07169AAD The 3M Maintenance Sorbent Drum Cover is designed for use on a 55 gallon (208 L) drum to catch drips and spills that occur during the dispensing of all types of non aggressive liquids used in daily operations