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Walkers Game Ear NRR 31 dB. Pro-Low Profile Folding Muff with Noise Reducing Rating GWP-FPM1 - The Home Depot
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Howard Leight® 1035112VS - VeriShield™ 100 Series™ 22 dB Black ABS Plastic Neckband Earmuffs - TOOLSiD.com
Howard Leight VeriShield 100 Ear Muffs - NRR 29 dB
Ear Defenders: A buyer's guide to hearing protection - SHP - Health and Safety News, Legislation, PPE, CPD and Resources
NRR Rating - Custom Protect EarCustom Protect Ear
Peltor Ear Muff Tactical 100 - Electronic Black-black 22 Db - Shooting Glasses & Hearing Protection at GunBroker.com : 1034785012
Peltor Sport Tactical 100 Electronic Hearing Protector Earmuff, NRR 22 dB, Black - Walmart.com
Professional Safety Ear Muffs by Decibel Defense - 37dB NRR - The HIGHEST Rated & MOST COMFORTABLE Ear Protection for Shooting & Industrial Use - THE BEST HEARING PROTECTION...GUARANTEED - Amazon.com