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Pentair

Pentair 300SQF SYSTEM:3 Inner & Outer Cartridge Pack

Pentair 300SQF SYSTEM:3 Inner & Outer Cartridge Pack

Regular price $518.00 USD
Regular price Sale price $518.00 USD
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Pentair 170145 Inner & Outer Cartridge Set — 300 Sq. Ft. Total Filtration Capacity

Engineered for exceptional filtration performance, the Pentair 170145 Replacement Cartridge Kit is a genuine OEM solution for the System:3 S7M120 Modular Media Filter. This dual-cartridge set includes both the inner and outer elements required to restore your filter to peak clarity and flow performance. Designed with precision-molded cores and high-capacity pleated media, these cartridges offer maximum debris capture and extended service life with minimal maintenance.

Ideal for large residential pools or high-usage environments, the combined 300 square feet of filtration surface areaensures fine particle removal and crystal-clear water quality. Simple to install and clean, the Pentair 170145 filter set is built for long-lasting performance and a hassle-free pool ownership experience.


Key Features

  • Optimized Compatibility: Specifically engineered for the Pentair Sta-Rite System:3 S7M120 Modular Media Filter.

  • Dual Cartridge Design: Includes both the inner (100 sq. ft.) and outer (200 sq. ft.) filter elements to deliver full system coverage.

  • Durable Construction: Reinforced end caps and precision-fit cores withstand pressure cycling and resist deformation.

  • Extended Filter Cycles: High-efficiency pleats increase dirt-holding capacity, reducing the frequency of cleanings.

  • Effortless Maintenance: Cartridges are easily removed and cleaned with a standard hose — no backwashing required.


Technical Specifications

Specification Detail
Total Filter Area 300 sq. ft.
Inner Cartridge 100 sq. ft. – 25.25" L × 8.5" Dia.
Outer Cartridge 200 sq. ft. – 18.5" L × 16.25" Dia.
Pentair Part Numbers 25021-0200S (Inner), 25022-0201S (Outer)
Compatible Filter System:3 S7M120 Modular Media Filter
Manufacturer Pentair
OEM Part Number 170145 / STA-051-6578
Weight (Set) Approx. 35 lbs

Whether replacing worn-out filter elements or performing scheduled maintenance, the Pentair 170145 Cartridge Kitensures your filtration system continues operating at its highest potential — delivering the clean, clear water your pool deserves.

STA-051-6578
170145 300SQF SYSTEM:3
INNER & OUTER CARTRIDGE PACK

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