MAXIMUM Single Use Earplugs, Cordless, 33NRR, Coral, 200 Pairs Envelopes Capacity (volume): 16 Ounce Capacity (volume): 16 Ounce 5 HP V Twin engine to directly drive a Roots 45 blower with direct 2 1 2 inch plumbing from the stainless steel waste tank to the blower and out of the blower to the silencer system providing maximum airflow and vacuum Product Description Global Product Type : Single Use Ear Plugs Corded Cordless : Cordless Noise Reduction Rate (NRR) : 33 dB Shape : Bell Material(s) : Polyurethane Foam Color(s) : Coral Size Group : One Size Fits Most Pre Consumer Recycled Content Percent : 0% Post Consumer Recycled Content Percent : 0% Total Recycled Content Percent : 0%