Sta-Rite delivers the unique benefits of D.E. filtration in a variation of their proven modular media technology. A single replaceable grid delivers water of superior quality without the complex workings of other D.E. filters. Tank and one-piece grid design make this filter virtually maintenance-free. Contemporary style and matte black finish looks attractive in any pool setting. The small diameter footprint makes the System:2 filter a perfect fit for new and retrofit installations. The interchangeable ports provide multiple plumbing options. Filter includes 2" NPT Drain ports, which are provided with reducer bushing and 1-1/2" drain plug.