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Pentair RAI-051-3576

Pentair RAI-051-3576

Our Price:
$93.99 Save: $31.00 (25%)
List Price: $124.99
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**** These filters measure 26 inches in length. To ensure you are ordering the correct filters please measure your existing filters for a match.****

The Pentair 178584 Clean & Clear Plus 420 replacement Filter Cartridge measures 26 inches in length by 7 inches in diameter and with 3 inch openings on top and bottom. These filter cartridges feature Anti-Microbial technology preventing microbes such as mold, fungi, bacteria, and mildew from growing.

This is a factory original Pentair replacement cartridge. Sold individually, 4 required for full set.


These Pentair replacement pool filter cartridges are also known as part number R173576 and are identical to Filbur part number FC-1977, Unicel part number C-7498 and Pleatco part number PCC105. These filters are constructed with thermally bonded polyurethane caps and a punched PVC pipe core that will ensure consistent water flow through your filters along with the durability you depend on.

  • Fits Pentair Clean & Clear Plus 420 Cartridge Filter
  • Pentair Part # 178584, 17-8584, R173576, R173575
  • Height: 26"
  • Diameter: 7"
  • Top: 3" Opening
  • Bottom: 3" Opening
  • Filter Area: 105 Sq Ft
  • Sold individually - 4 required for complete set
  • Identical to Filbur FC-1977, FC1977, Unicel C-7498, C7498 & Pleatco PCC105
  • Factory original Pentair replacement cartridge

To clean your pool filter just remember these 4 simple steps; rinse, soak, rinse, dry. Rinse your filter out with a garden hose to remove any debris or dirt still attached to your filter. Next, soak your filter in a filter cleaner solution overnight, then remove your filter from the solution and rinse with a garden hose. Set your filter in a sunny location and let it air dry completely. Finally, reinstall your pool filter per your manufacturer’s instructions.

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We expect our customers to be 100% satisfied with the products we sell and the service we provide. If at any time in the next 30 days you are NOT 100% satisfied with your purchase, you may send your purchase back for a refund or store credit for the price paid for the merchandise (minus what you paid for shipping), or you may exchange it for another item in our store.

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