Carvin Laser L250C 7C 25" Top Mount 1 1 2" Valve Sand Filter (94089250) champlain The Hayward impeller is designed The Hayward impeller is designed for compatible Max Flo and Super Pump applications where a 1 3 OHP or 0 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 94089250 is a strong replacement choice for compatible pool systems that need renewed sand filtration support and cleaner everyday water management 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