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3M Peltor Optime 95 Hard Hat Mounted Ear Muffs Helmet Hearing Protection Earmuff | eBay
Howard Leight by Honeywell EM7209-HL Leightning® L3H Cap Mount Earmuffs, 26 dB Noise Reduction, White, ANSI S3.19, EN 352-3, Z94.2, EPA Certified, CSA Certified | DGI Supply
Hard Hat Mounting Ear Muffs Cap Mount Protective Earmuffs Noise Reduction N9O4 | eBay
Airgas - 3MRX4P51E - 3M™ Peltor™ X4P51E Black Cap Mount Hearing Protection