Manual Disc Filters are engineered for efficient operation year after year with practically no maintenance. Plastic rings stack together creating a cylindrical filter element. During filtration, the rings are compressed together effectively filtering the water and protecting the system from clogging. Works well as a stand-alone unit or combined to form modular filter batteries. Available sizes 3/4”³ to 6”³ with mesh (micron) ranges from 40 to 200.