3M™ Combat Arms™ 393-2022S-50, 4.1 Probed Test Earplug, 50/CS Min Qty Order:1 3M SKU: 7100066530

3M SKU: 7100066530

3M SKU: 7100145417

3M SKU: 7100215821

3M SKU: 7100105071

3M SKU: 7010298179

3M™ Combat Arms™ 393-2022S-50, 4.1 Probed Test Earplug, 50/CS Min Qty Order:1 3M SKU: 71000665303M SKU: 7100113005 Lead Time: ~2 days Test probe for the 3M E A Rfit System 3M PSD products are for occupational use only.; 5000 pair per case; NOTE: 3M strongly recommends fit testing of hearing protectors. Research suggests that many users will receive less noise reduction than indicated by the NRR due to variation in hearing protector fit, fitting skill and motivation of the user. If the NRR is used, 3M recommends that it be reduced by 50% or in