Compare Quick view Hayward HAYWARD | FILTER CARTRIDGE 325 SQFT | C3030 MSRP: Was: Now: $963.16 HAYWARD | FILTER CARTRIDGE 325 SQFT | C3030 SwimClear™ ITEM # SWIMCLEAR Description Wish there was a way to clean your pool's filtration system without pouring gallons of water into the environment? SwimClear™...