The assembly consists of 5 core components, ensuring complete functionality: 1) Hose angle valve (controls water flow to the system), 2) Adjustable fog nozzle (delivers flexible water streams for different fire scenarios), 3) Pin rack (neatly stores the fire hose for easy access), 4) Fire hose with NH coupling (securely connects to the water supply and nozzle), and 5) Rack nipple (links the valve to the hose rack). Typically installed in fire cabinets on each floor of a building, it keeps fire-fighting tools organized and readily accessible, eliminating delays in emergency response.