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 97571 1/2" NPT Male Safety Coupler
Dynabrade 97571 1/2" NPT Male Safety 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
