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 94993 1/4" Male Composite-Style Coupler with 1/4" Female Plug Assembly
Dynabrade 98272 1/2" NPT Female Plug
Dynabrade 98270 1/2" Male Coupler
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.
Air Tool Accessories
Dynabrade 94992 1/4″ Male Composite-Style Coupler with 1/4″ Male Plug Assembly
Air Tool Accessories
Dynabrade 94991 1/4″ Female Composite-Style Coupler with 1/4″ Female Plug Assembly
