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Ships within 48 hours · Estimated delivery Oct 18 - Oct 23
How the SU-690 compares
regardless of shell shape or chin strap
Both share the same bell-shape polyurethane foam and the same NRR 30
9% UV Standards Impact-rated ANSI Z87
3M E-A-Rsoft FX 312-1261 Cordless Earplugs — NRR 33 312-1250 How the SU-690 comparesEDITORIAL REVIEW: 4. 7 5WC Safety Review 3M E A Rsoft FX 312 1261 Cordless Earplugs Best For: corded single use foam hearing protection at NRR 33 dB in a low profile uncorded design. Not For: non noise hazards, or noise that earplugs alone can't bring under ~85 dBA (add earmuffs). Bottom Line: a practical single use foam plug at NRR 33 dB the uncorded low profile fit suits tight spaces and high volume single use. Editorial assessment by Steven Eaton,
US$ 17.22
US$ 16.69
US$ 67.97
US$ 63.70
US$ 12.02
US$ 32.02
