• These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E-A-Rfit™ 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.

Y-Harness for mounting a boom microphone to the left earcup and enabling connection to a PTT adapter for two-way radio communication

These test earplugs are modified with a probe tube for use during earplug fit testing with the 3M™ E-A-Rfit™ Validation System 3M is Leading the Advancement of Hearing Conservation™.