Hayward X-Stream CCX1500 Waterway Pro-Clean 150 Excel Filters XLS-826 fits Cartridges Sta-Rite PXC-150, Unicel C-8416, Pleatco PWWPC150B, PWWPC150B-4, Filbur FC-1286 DIMENSIONS: HEIGHT 28.1875"; OUTSIDE DIAMETER 8.9375"; TOP INNER DIAMETER 4", BOTTOM INNER 4" MOST Orders are SHIP SAME DAY and DELIVERED in 3 BUSINESS DAYS. Replacement Cartridge for Unicel C-8416, Pleatco PWWPC150B, PWWPC150B-4, Filbur FC-1286 Open Flow Core for optimal flow dynamics and less energy consumption during filtration process Durable, reinforced banding, and uniform pleats provides effective dirt loading and ease of cleaning