The Pentair 25023-0172S replacement D.E. filter cartridge is designed for Sta-Rite System 3 SMD Series modular media pool and spa filters, specifically the S7MD72 model. This cartridge provides 72 square feet of filtration area and captures dirt, debris, and fine particles as water flows through the filter system. Its reinforced polyester filtration media supports efficient filtration and reliable water clarity.

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Key Features

• Replacement D.E. filter module designed for Sta-Rite System 3 SMD Series filters including the S7MD72 model.
• Provides 72 square feet of filtration surface area for effective removal of debris and contaminants.
• Reinforced pleated polyester filtration media increases dirt-holding capacity and filtration efficiency.
• Durable polyurethane end caps and reinforced core support structural integrity and long service life.
• Approximate dimensions of about 17-1/4 in × 17-1/4 in × 28 in ensure proper fit in compatible filters.
• Designed for diatomaceous earth filtration systems to capture fine particles for improved water clarity.

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Product Overview

The Pentair 25023-0172S filter cartridge is an internal filtration module used in Sta-Rite System 3 SMD Series D.E. filters. Installed inside the filter tank, the module supports diatomaceous earth media which traps fine debris and contaminants as water circulates through the filtration system.

With 72 square feet of filtration area, the cartridge provides efficient debris removal while maintaining strong water flow through the system. The reinforced polyester media and durable molded end caps are engineered for repeated cleaning cycles and long-term operation. Replacing worn or damaged filter modules restores proper hydraulic performance and helps maintain clear, balanced pool water in Sta-Rite System 3 filtration systems.