Pendent Concealed Sprinklers are thermo-sensitive glass bulb sprinklers having decorative flat cover plate designed to conceal the sprinkler for smooth ceilings. The cover plates are available in several decorative finishes to match architectural requirements. The unique design allows installation and testing of the sprinkler before installation of the cover plate with the cup. The sprinkler housing is threaded to fix the cover plate with cup assembly to provide 12.7mm (1/2”) vertical adjustment.