Hayward Pro Series Top Mount gives pool owners an effective sand filter that will keep their pool clean while being much cheaper to operate than DE filters and needing much less maintenance than cartridge filters. It features a thermoplastic shell for exceptional durability and corrosion-resistance, ensuring your filter will give you years of reliable service. It incorporates Hayward’s Vari-Flo control valve, which allows you to dial in the exact flow rate your pool needs to keep it looking great. Pro Series Top Mount is designed for easy maintenance by having large drains that make winterizing and service as well as full-size internal plumbing to minimize flow restrictions and clogs, saving you time. Pro Series filters are the best combination of performance, durability, and affordability available in sand filters today.