Length: 17-3/8" Diameter: 8-15/16" Top: Open hole 4" Bottom opening: Open hole 4"   Replaces: Pleatco PXST100 Hayward X-Stream CC1000 Unicel C-8311 Filbur FC-1285 Built to meet OEM specifications, the Guardian 817-194 features: 100 sq. ft. of high-quality 4 oz. Filtration Fabric Exclusive Expansive Flow™ core Break-resistant Guardian banding Alternative filter names: CCX1000-RE, CCX1000RE, X-1000RE, Hayward X-Stream CC1000, 17-175-1350, APCC7536, CCCCX1000-RE, A-1000RE, MX-1000RE, APCC7207M Used in pools/spas made by: Hayward, Waterway Plastics and other manufacturers   By Guardian Filtration Products • 817-194