3M 10014 Open Barrel Splice, 500 kcmil, Brown Code, 2.88 in, Copper 5452222 Series Foam Reusability Disposable Earplug Series Foam Reusability Disposable Earplug Material Foam UPC 50051138290080 Cord Options Uncorded Noise Reduction Rating NRR 29 dB Earplug Shape Bullet Noise Reduction Rating 29 dB Earplug Color Orange Pairs Per Package 200 Insertion Method Roll Down Metal Detectable No Standards CSA Class AL Dielectric Yes Features Electrically Insulated Earplug Packaging Bulk Box Earplug Pair Pack Type Plastic Bag Electrically Insulated Yes 900 RPM Inlet Size 3 16 in NPT Outlet Size 3 16 in NPT Outlet Gender Female Air Tank Style Tankless Thermal Protection Yes Sound Level 52 dBA Operating Temperature 40–104 °F Overall L × W × H 7 Wire Size 500 kcmil Color Code Brown Overall Length 2 Brown Code