System 3 Outer Cartridge Filter | Pentair | 25022-0225S | 291 SF | Sta-Rite System 3

The Pentair Sta-Rite System 3 Large Outer Cartridge Filter 291 Sf | 25022-0225S is designed to replace worn or damaged components and restore proper operation to your pool equipment. As the outer cartridge filter for Sta-Rite System 3, it delivers 291 square feet of filtration surface, capturing dirt, pollen, and oils before water returns to your pool. This replacement part is ideal for pool owners who want longer filter cycles, easier maintenance, and reliable performance.

• 291 sq ft filtration area for superior debris handling
• Outer cartridge design enables easier cleaning and replacement
• Durable housing resists corrosion and outdoor exposure
• Plug-and-play compatibility with Pentair Sta-Rite System 3 units
• Backwash savings reduces water and energy use

Whether you're revitalizing a tired system or upgrading to a filtration solution that keeps water crystal clear, this replacement part supports real-world use cases—from seasonal pool prep to high-traffic outdoor pools. Ideal for homeowners and service pros who value consistent performance and straightforward maintenance.

Consider adding this replacement to your cart to keep your pool looking great.