<ul><li>These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M E-A-Rfit Validation System</li><li>50 PR Per Case</li><li>3M PSD products are for occupational use only.</li><li>*The NRR may overestimate the hearing protection provided during typical use.</li></ul><br><br>3M 1100 Earplugs equipped with a probe tube for fit testing using the 3M E-A-Rfit Validation System. Cannot be used for hearing protection.

3M 1100 Probed Test Earplugs, 393-2010-50, Pack of 50 Pairs, for use During earplug fit Testing with The 3M E-A-Rfit Validation System, Orange

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