56 Hearing Protection *See warning statements on the last page of this catalog. 3M™ E-A-R™ Skull Screws Earplugs offer noise attenuation with attitude. Noise Reduction Rating (NRR): 32 dB*. Manufacturer Part Number SKU P1301 7000127181 3MTM E-A-RTM Skull Screws, gray, corded, NRR 32 dB Earmuffs 3M™ E-A-R™ Push-Ins Earplugs provide hearing comfort, convenience, and protection. Noise Reduction Rating (NRR): 28 dB*. Manufacturer Part Number SKU 318-1001 7000052745 3MTM E-A-RTM Push-Ins Earplugs, yellow, corded, NRR 28 dB 3M™ PELTOR™ Earmuffs X4 are lightweight, low-profile earmuffs that offer a high level of protection and visibility. Noise Reduction Rating (NRR): 27 dB*. Manufacturer Part Number SKU X4B UU008197848 3MTM PELTORTM X4 Earmuffs X4B, Behind-the-Head, 10 EA/Case Hearing Protection
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