Description of Sta-Rite System:3 SD Series D.E. Filters; 37 to 53 sq. feet.

Diatomaceous earth is historically the media choice for designers of some of the largest and most beautiful pools in the world. Filtering with diatomaceous earth (D.E.) gives you water that really sparkles. That’s because D.E. filters remove the tiniest of contaminants. . .particles as small as 5 microns. (An average grain of sand is 1000 microns!) Even though these particles can’t be seen individually, collectively they greatly affect water clarity.

Sta-Rite’s System:3® D.E. Filters SD Series bring you the proven performance of Sta-Rite’s diatomaceous earth media in the world's easiest-to-operate D.E. filter. The greater cycle times and minimized maintenance of the System:3 D.E. Filters SD Series, coupled with their superior grid system, give you the finest D.E. filter available. Features:

Quality Construction – Durable two-piece tank housing constructed of Dura-Glas®, Sta-Rite's industry leading glass-reinforced composite resin.

Safe – Posi-Lok™ clamps provide safe, easy access to tank internals.

Innovative Design – 2 inch plumbing throughout combined with Sta-Rite's exclusive rectangular grid system provides superior D.E. filtration.

Low Maintenance – Superior backwash capabilities means less manual cleaning of the grids.

Dual Drain Plugs – Side plug assembly includes 1-1/2 inch NPT port for direct discharge plumbing.

Sleek Looks – Contemporary style and matte black finish looks attractive in any pool setting.

Valves are sold separately and shown below.