3M 7000128264 | Skull Screws 393-2012-50 Polyurethane Ear Plug

3M Skull Screws Probed Test Plugs are a specially probed version of the standard plug. 3M Skull Screws Probed Test Plugs are a specially probed version of the standard plug. This product works with the E A Rfit Validation System and allows you to conduct an earplug fit test for the P1300 and P1301 earplugs.

Features:

• Specially probed version of the standard plug
• This product works with the E-A-Rfit Validation System
• Allows you to conduct an earplug fit test for the P1300 and P1301 earplugs
• The NRR may overestimate the hearing protection provided during typical use