Pentair

Pentair Sta-Rite System 3 S7M120 Modular Media 300 Filter Cartridge Kit

Regular price $492.95 Sale price$550.00

Reliable Filtration Starts with the Right Replacement
Keep your pool clean. Make sure your filter system works well. Use the Pentair Sta-Rite System 3 S7M120 Modular Media 300 Filter Cartridge Kit. This complete replacement set includes both the inner and outer cartridges. They are designed for the System 3 S7M120 Modular Media Filter. If you see less clear water or have pressure problems, it may be time to change those old, clogged cartridges. This kit is the perfect solution for you.

This high-quality media kit helps restore your filter’s flow rates. It also maximizes dirt-trapping capacity. This makes pool maintenance easy and efficient. Spend less time cleaning and more time swimming.


Why Choose the Pentair S7M120 Cartridge Kit?

Perfect Fit for Sta-Rite System 3 S7M120 Filters

This kit includes both inner and outer replacement elements, ensuring full compatibility with your S7M120 filter. It’s a direct replacement that installs seamlessly without tools or modifications.

Massive 300 Sq. Ft. Filtration Area

This system has 300 square feet of filtration surface. It traps more dirt and debris. This reduces how often you need to clean it and improves water clarity.

OEM-Grade Performance

This kit is made to meet or exceed original Pentair standards. It offers great durability, flow, and pressure retention. This means your pool stays cleaner for a longer time with less effort.

Improve Pool Efficiency

Old, dirty cartridges can strain your pump and reduce water circulation. Replacing them restores optimal system efficiency, potentially lowering energy costs and extending the life of your pool equipment.


Ideal For:

  • Pool owners using Pentair Sta-Rite System 3 S7M120 filters

  • Customers experiencing low flow, cloudy water, or high PSI readings

  • Regular seasonal maintenance and filter refresh

  • Residential inground pool filtration systems


What’s Included:

  • (1) Inner Filter Cartridge (Pentair #100 Sq. Ft.)

  • (1) Outer Filter Cartridge (Pentair #200 Sq. Ft.)

  • Compatible with: System 3 S7M120 Modular Media Filter


Key Features

  • Exact Fit for Pentair Sta-Rite S7M120

  • 300 Sq. Ft. of Filtration Surface

  • OEM-Quality Performance

  • Boosts Water Clarity and Circulation

  • Reduces Filter Maintenance Frequency

  • Easy Installation—No Tools Required

  • Improves System Pressure and Efficiency

  • Long-Lasting Media Material


Maintenance Tip:

Rinse the cartridges every 4 to 6 weeks. Do this more often if there is a lot of debris. Replace the cartridges every year or when needed. Check the PSI readings and water clarity to help decide.

Regular price $492.95 Sale price$550.00you save $57.05
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