Carvin Laser L250C 7C 25" Top Mount 1 1 2" Valve Sand Filter (94089250) champlain and diffuser format give this and diffuser format give this kit practical value because hydraulic parts work best when they match each other and the intended pump relationship closely The Hayward impeller is designed for compatible Max Flo and Super Pump applications where a 1 3 OHP or 0 This version with a 1 1 2 inch top mount valve is especially useful when a compatible filter needs replacement or when the application calls for a larger top mount sand filter with this connection style The 94089250 is a strong replacement choice for compatible pool systems that need renewed sand filtration support and cleaner everyday water management