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 98271 1/2" NPT Male Plug						
																	
Dynabrade 98271 1/2" NPT Male Plug						
																	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 94993 1/4″ Male Composite-Style Coupler with 1/4″ Female Plug Assembly
