Thunder® Noise-Blocking Earmuffs Eye Protection Adjustable crown strap provides a

Adjustable crown strap provides a secure fit when worn behind-the-head or under-the-chin

1-2007 and CSA Z259

Meets ASTM F887-05 arc-flash standards and all applicable OSHA

submersible 110 VAC single phase pumps are excellent for manholes

Thunder® Noise-Blocking Earmuffs Eye Protection Adjustable crown strap provides aUnique dual headband offers better positioning and breathability, and non deforming outer headband minimizes pressure. Dielectric construction withstands use and abuse while protecting workers in electrical environments. Features patented Air Flow Control technology for optimal attenuation across all frequencies and snap in ear cushions for easy maintenance. Cap mounted earmuffs include a pair of adapters for use with most popular hard hats. Tested to