A fire service pumper connection, located outside buildings, permits the fire service to pump water into a sprinkler system from a nearby public hydrant or reservoir. Water supplied at high pressure will aid automatic sprinklers to control a fire. The connection may also be used to supply building standpipes. FDC are made of bronze and consist of two inlet couplings threaded for standard fire hose and siamesed into an outlet pipe connection. A check valve is provided in each inlet so that either connection may be used separately. The connections are available in straight, 45° or 90° patterns. Unless otherwise noted in the listing, these connections have 175 psi (1205 kPa) rated working pressure.