Rainbow Jacuzzi Premium J400 Spa Filter

The Rainbow Jacuzzi Premium J400 Spa Filter is designed to improve water circulation and increase dirt-holding capacity for clearer spa water. Its open-flow core helps reduce the energy needed for filtration, while the high fiber count and engineered media deliver excellent dirt loading and long-lasting durability. An anti-microbial resin end cap further improves flow, lowers overall energy use, and makes the cartridge easier to clean. Together, these features help keep your water crystal clear—so you can enjoy a perfect soak every time.