510 x 125 Rainbow RDC75 Replacement Cartridge Filter Element

510 x 125 Rainbow RDC75 Replacement Cartridge Filter Element is a replacement pool or spa cartridge filter element for compatible filtration systems.

Please confirm the dimensions, end-cap style, centre opening and part number FC-FAA521 before ordering.

Replacement cartridges can look similar but differ in height, diameter and connection style. Contact us with your existing cartridge measurements or a clear photo if you need help checking compatibility.