Micron Cartridges For removal of microscopic particles for enhanced water clarity. Cartridge is reusable. Fits all Magnums (not shown).
Carbon Containers For activated carbon or other large granular filter media. (mfg# PA 0145) is for Magnum 330/350 and 200/220 filters. (mfg#PR 1545) is for H.O.T. Magnum filters.