3M™ Combat Arms™ 393-2022L-50, 4.1 Probed Test Earplug, 50/CS Min Qty Order:1 3M SKU: 7100190550

3M SKU: 7100190550

3M SKU: 7100006570

3M SKU: 7010517196

3M SKU: 7010329075

3M SKU: 7100272683

3M™ Combat Arms™ 393-2022L-50, 4.1 Probed Test Earplug, 50/CS Min Qty Order:1 3M SKU: 71001905503M SKU: 7100113002 Lead Time: ~2 days 3M Combat Arms 4. 1 Probed Test Plugs, size large are a specially probed version of the standard earplug. This product works with the E A Rfit Validation Sysem and allows you to conduct an earplug fit test for the 3M Combat Arms 4. 1 earplug. 3M PSD products are for occupational use only.; 3M E A Rfit Test Probes for CAE 4. 1; 50 pair per case; NOTE: 3M strongly recommends fit testing of hearing protectors.