9ft Umbrella Replacement Canopy 6 Ribs in Red (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 Red Fits 6 ribs umbrella frame. EACH rib must measure 52" to 54 300 denier polyester fabric with UV treated and water repellent. CANOPY ONLY, Air Vent construction.