EMACO Hose Rack Assemblies permit readily available means of controlling and suppressing fire by one person. The semiautomatic swing rack with movable pins features an automatic release mechanism, keeping water out of the hose (when the valve is open) until the last fold is released. Application: Class I systems provide water supply for the primary means of firefighting. Class II systems used by trained building occupants until the fire department arrive. Class III systems provide supply water for use by trained building occupants or by fire departments and those trained in handling heavy water streams.