Hayward S244SLV ProSeries Sand Filter, 24-Inch, Side-Mount Pro Series sand filter delivers crystal clear water and requires minimal care Features an advanced, self-cleaning lateral system for smooth, efficient flow and totally balanced backwashing Tank is molded of corrosion proof polymeric materials for dependable all-weather performance Also features manual air relief for easy, manual release of air from system Measures 24-1/2-inch width by 36-inch height