E-A-R 340-4003 3M E -A -R UltraFit Uncorded Earplugs 340 -4003 - in Poly Bag 4 voomi_id_84324 Applications: Suitable for residential and

Applications: Suitable for residential and commercial heating systems utilizing Beckett burners

Bowl Material: Polycarbonate with Guard

Ensures high-efficiency filtration to maintain clean oil flow

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E-A-R 340-4003 3M E -A -R UltraFit Uncorded Earplugs 340 -4003 - in Poly Bag 4 voomi_id_84324 Applications: Suitable for residential andThe E A R UltraFit uncorded earplugs features a proprietary, premolded, triple flange design that fits comfortably in most earcanals. Poly bag keeps each pair of earplugs available or accessible for re use. Proprietary, premolded, triple flange earplug design inserts easily. Soft polymer is washable and reusable Noise Reduction Rating (NRR)*: 25 dB. CSA Class AL Test compatible with E A Rfit Validation System Sold By the Case