Description
- specially probed version of the standard plug
- works with the E-A-Rfit Validation System
- allows you to conduct an earplug fit test for the Tri-Flange and UltraFit Plus earplugs
- *The NRR may overestimate the hearing protection provided during typical use.
- For industrial/occupational use only. Not for consumer sale or use
3M Tri-Flange Probed Test Plugs are a specially probed version of the standard plug.