The Sentry III utilizes a six-point adjustable nylon web suspension with an integral ratchet feature that adjusts quickly and easily to head sizes 6.5 to 8. Universal slots allow for attachment of earmuffs and faceshields. Meets ANSI Z89.1-1986 and CSA Z94.1 Standards. SEI certified.
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.