The Pentair 25022-0203S replacement cartridge is designed for Sta-Rite System 3 modular media pool and spa filtration systems, specifically the S8M150 model. This large outer cartridge provides approximately 259 square feet of filtration area and captures dirt, debris, and fine particles from circulating pool water. The reinforced pleated polyester media delivers high dirt-holding capacity and helps maintain efficient filtration performance and extended cleaning intervals.

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Key Features

• Replacement outer cartridge designed for Sta-Rite System 3 modular media filter model S8M150.
• Provides approximately 259 square feet of filtration area for effective debris and contaminant removal.
• Reinforced pleated polyester filter media improves dirt-holding capacity and filtration efficiency.
• Durable molded end caps and reinforced core support long service life and repeated cleaning cycles.
• Designed as the large outer cartridge used with the corresponding inner module in S8M150 filters.
• Genuine Pentair replacement element restores proper water flow and filtration performance.

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Product Overview

The Pentair 25022-0203S filter cartridge is an essential filtration element used in Sta-Rite System 3 modular media pool filters. Installed inside the filter housing, the cartridge captures debris and contaminants as water flows through the pleated filter media, helping maintain clear and balanced pool water.

This cartridge serves as the large outer filtration module in the System 3 S8M150 configuration and works together with a matching inner cartridge to provide the system’s full filtration capacity. The reinforced polyester media and molded end caps are engineered for durability and repeated cleaning cycles. Replacing worn or clogged cartridges restores proper circulation and ensures reliable filtration performance for Sta-Rite System 3 pool filtration systems.