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.
Dynabrade 97570 1/2" NPT Female Safety Coupler
Dynabrade 95684 1/4" Male Coupler
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Dynabrade 95677 1/4" Male Plug with 1/4" NPT Female Thread
Dynabrade 94992 1/4" Male Composite-Style Coupler with 1/4" Male Plug Assembly
Dynabrade 97570 1/2" NPT Female Safety Coupler
Dynabrade 95684 1/4" Male Coupler
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Dynabrade 95677 1/4" Male Plug with 1/4" NPT Female Thread
Dynabrade 94992 1/4" Male Composite-Style Coupler with 1/4" Male Plug Assembly
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.
