Viking® VK504, ESFR, Dry Sprinkler Pendent, 16.8K, Fusible Link, Pendent, Fast Response, 1 ½” Threaded NPT, Brass, 165 Degree, 30.5” Length, 19234AC Fire Sprinkler Head sbl66 Service kit for use with

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Viking® VK504, ESFR, Dry Sprinkler Pendent, 16.8K, Fusible Link, Pendent, Fast Response, 1 ½” Threaded NPT, Brass, 165 Degree, 30.5” Length, 19234AC Fire Sprinkler Head sbl66 Service kit for use withViking VK504, ESFR, Dry Sprinkler Pendent, 16. 8K, Fusible Link, Pendent, Fast Response, Threaded 1 NPT, Brass, 165 Degree, 30. 5 Length, 19234AC Fire Sprinkler Head Viking Early Suppression Fast Response (ESFR) Dry Pendent Sprinkler VK504, with a grooved connection, standard brass, 165 F (74 C), 19. 5" nominal length is a fast response fusible element type sprinkler designed for use in storage areas subject to freezing and supplied from a wet system