3M™ E-A-R® UltraFit® #340-4003 Earplugs – Uncorded

Manufacturer #: 340-4003 SKU: 45677 contact us for a quote

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This is a reusable earplug.

Patented swept-back triple-flange design allows a single-sized earplug to fit a wide variety of ear canal sizes.

Conforms to shape of ear without creasing. Washable, promotes worker hygiene.

Laboratory tested NRR 25 dB.

Available in corded and uncorded.

Breakaway cord protects in case of machine entanglement.


  • Noise Reduction Rating (NRR): 25 db
  • CSA Class AL
  • Packaged one pair/polybag
  • 100 pairs/box

* All images displayed are for illustrative purposes only and may not be an exact representation of the product