9ft Umbrella Replacement Canopy 6 Ribs in Royal Blue (Canopy Only) Make sure your umbrella is 6 panels canopy with ribs length 52" to 54" 9ft umbrella replacement canopy for 6 ribs umbrella in Royal Blue Fits 6 ribs umbrella frame. EACH rib must measure 52" to 54" 300 denier polyester fabric with UV treated and water repellent. Replacement Umbrella CANOPY ONLY. Air vent canopy with umbrella tie rope