Globe Fire Sprinkler Corporation GL Series pendent, upright, and horizontal sidewall fire sprinkler heads are Listed by Underwriters Laboratories Inc. for use in wet pipe sprinkler systems conforming to the design/usage requirements of NFPA 13, NFPA 13D and NFPA 13R. These sprinkler heads have been specially designed to conform to these standards as a minimum and additionally to the Underwriters Laboratories Inc. Standard for Residential Sprinklers for Fire Protection Service, UL 1626. They are also approved for use by the New York City Department of Buildings.
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