3M H31A EAR MUFFS OVER-THE-HEAD NRR 24DB

3M H31A - EAR MUFFS OVER-THE-HEAD NRR 24DB - EAR MUFFS EAR MUFF STYLE OVER-THE-HEAD NOISE REDUCTION RATING NRR 24DB DIELECTRIC NO SERIES H31 HI-VIZ SPECIALTY EAR MUFF CUP COLOR ORANGE STANDARDS ANSI S3.19-1974 - EQUAL TO 3RXF1