3M™ E-A-R Classic Earplug, Corded, 311-1101, 200-Pair NRR 30 - Twin cup

NRR 30 - Twin cup design minimizes resonance

Longer length for easy fitting and removal

000 square feet in an hour

EXHAUST           Rear

3M™ E-A-R Classic Earplug, Corded, 311-1101, 200-Pair NRR 30 - Twin cup3M E A R Classic Earplug, Corded, 311 1101, 200 Pair Item #: WGB722232 3M E A R Classic Earplug, Corded, 311 1101, 200 Pairs Still one of the most widely used foam earplugs today, the 3M E A R Classic earplug is an economical, reliable choice for hearing protection and hearing conservation. Slow recovery, low pressure foam conforms to the shape of the earcanal to help create a comfortable, snug noise barrier. Features: Poly bag keeps each pair of