Hayward SwimClear 325 sq ft Filter, Multi-Element | W3C3030Hayward SwimClear 325 sq ft Filter, Multi Element W3C3030 The Hayward SwimClear W3C3030 325 SqFt Cartridge Filter delivers exceptional filtration performance with superior energy efficiency. Designed to handle a maximum flow rate of 122 gallons per minute, this filter ensures crystal clear water while minimizing maintenance requirements. SwimClear cartridge filters eliminate the need for backwashing, helping you conserve up to 2,500 gallons of water