3M™ E-A-R™ Earmuffs 331-4000, Model 4000
Outstanding comfort and protection at a budget-conscious price.
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ITEM#
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331-4000
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MANUFACTURER
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3M
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Vertical adjustment system for quick and easy fitting. Large earcup openings to fit most ear sizes. Soft wide cushions for even pressure and extra comfort. NRR 27dB. ANSI S3.19; CSA Class A.