Victaulic S381PCS410 is a brass, standard response, concealed pendent fire sprinkler head (FireLock V3801) for commercial use, featuring a 1/2-inch NPT connection, a 155°F (68°C) glass bulb, and a 5.6 K-Factor, designed to be hidden by a cover plate for aesthetic appeal while providing effective, automatic fire suppression by releasing water when triggered by heat.
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