Looking for a quick-response emergency sprinkler system that covers a large area? The Tyco® Series RFII Standard Coverage Sprinkler quick-response (3-mm bulb) and standard-response (5-mm bulb) sprinklers are decorative sprinklers featuring a flat cover plate designed to conceal the sprinkler. The separable, two-piece assembly design allows installation of the sprinklers and pressure testing of the fire protection system prior to the installation of a suspended ceiling or the application of a finish coating to a fixed ceiling. These sprinklers are an ideal fit for architecturally sensitive areas such as hotel lobbies, office buildings, churches, and restaurants.