The Hayward Pro™ Series Top-Mount Sand Filters are high performance, totally corrosion-proof filters that blend superior flow characteristics and features with ease of operation. For multiple applications, the Pro Series represents the very latest in sand filter technology and will provide clear, sparkling water for years to come. Molded of durable, corrosion-proof polymeric material, they feature attractive, unitized tank construction for years of trouble-free operation with only minimal care. The Pro Series sets a new standard for performance, value and dependability. All models are also ideal for water features such as ponds and fountains.