Pentair Sta-Rite Replacement Cartridge 25021-0200S – System 3 S7M120 (Indoor Module)

High-performance filtration for Sta-Rite System 3 modular filter

The Pentair Sta-Rite 25021-0200S cartridge is an original replacement part designed for System 3 S7M120 modular filtration systems. This inner module (Small Inner Cartridge) provides efficient filtration of 100 square feet, capturing fine impurities to maintain clean, clear, and perfectly balanced pool water.

Manufactured to Pentair Sta-Rite standards, this cartridge guarantees precise fit, optimal performance, and superior durability.

Compatibility

Compatible with:

• Sta-Rite System 3 S7M120 Modular Media Filter

• Pentair System 3 S7M120 (300 Series)

Manufacturer reference:

• 25021-0200S

• Replaces: 250210200S

Type:

• Inner cartridge (Small Inner Module)

Technical characteristics

• Filter surface: 100 square feet

• Type: Modular inner cartridge

• Brand: Pentair Sta-Rite (OEM – original part)

• Use: Residential or commercial pool

• Installation: Direct replacement, no modification

Advantages of the Sta-Rite 25021-0200S cartridge

Efficient filtration 100 sq ft

Effectively retains:

• Fine dust

• Organic debris

• Suspended particles

Pentair Sta-Rite original part

Ensures:

• Perfect compatibility

• Optimal sealing

• Performance identical to the original cartridge

Increased durability

Designed to withstand:

• With pool chemicals

• Extended filtration cycles

• Daily wear

Simplified maintenance

A clean cartridge improves:

• Filtration flow rate

• Energy consumption

• The longevity of the filtration system

Why replace your System 3 cartridge?

A worn or clogged cartridge can cause:

• Cloudy water

• High pressure in the filter

• Performance drop

• Premature pump wear

Regular replacement ensures optimal filtration throughout the season.