3Mâ„¢ E-A-Râ„¢ Classicâ„¢ Probed Test Plugs 393-2003-50, 50 EA/Case

These test earplugs are modified with a probe tube for use during earplug fit testing with the 3Mâ„¢ E-A-Rfitâ„¢ Validation System 50 PR Per Case 3M PSD products are for occupational use only. *The NRR may overestimate the hearing protection provided during typical use. Earplugs equipped with a probe tube for fit testing using the 3Mâ„¢ E-A-Rfitâ„¢ Validation System. Cannot be used for hearing protection. These test earplugs are modified with a probe tube for use during earplug fit testing with the 3Mâ„¢ E-A-Rfitâ„¢ Validation System 3M is Leading the Advancement of Hearing Conservationâ„¢.