Sound Blocker 26 59991 This product is no longer in production Offers sound protection up to 26 NRR (noise reduction ratio). Includes clips for Defender® frame. Meets ANSI S3.19-1974, CSA Class A and EN352-3. Buy Now Find Retailer Product Media Specifications Warnings Related Items Reviews Downloads Brochure Specifications Weight: 0.72 lb (0.33 kg) UPC: 092644599910 Additional Information Warranty Compliance Warnings It is important that users of these products read, understand, and follow all instructions, cautions, and warnings that are attached to and/or packed with the product. Related Items 60545 Forestry Kit 60474 Face Shield, Mesh 60472 Face Shield, Safety Helmet and Cap-Style Hard Hat, Clear 60528 Face Shield, Full Brim Hard Hat, Clear 60473 Face Shield, Safety Helmet and Cap-Style Hard Hat, Gray Tint 60529 Face Shield, Full Brim Hard Hat, Gray Tint 60523 Lightweight Cooling Fan for Hard Hats 29025 Modular Battery for Klein Tools Cat. No. 60155 Hard Hat Cooling Fan 60155 Cooling Fan for Hard Hat and Safety Helmet 56063 Rechargeable Safety Lamp with Magnet