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Rainbow R172325 Dynamic 25 Sq Ft Filter Cartridge - FC-2370

Availability: In Stock

Regular Price: $36.99

Sale Price $24.99

You Save: $12.00  (32%)

Quick Overview

****These filters measure 13-5/16 inches in length. To ensure you are ordering the correct filters please measure your existing filters for a match.****

This 25 Sq Ft spa filter cartridge replaces Rainbow (Pentair) part number R172325, Waterways part number 817-2500 and Premier Springwater part number 27-101  This filter meet or exceed the original filter cartridge that came with your hot tub and is made from Reemay spun-bound polyester pleated filter media that features anti-microbial technology which prevents microbes such as mold, fungus, and bacteria from growing on your filters.

This spa filter cartridge is a recommended replacement for the Rainbow R172325 Filter Cartridge.


These replacement filters are identical to Rainbow part number R172325, Waterways part number 817-2500, Premier Springwater part number 27-101, Filbur part number FC-2370, Unicel part number C-4625 and Pleatco part number PRB25IN. These filters are also 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.

  • Replaces Pentair / Rainbow part numbers R172325 & R173428
  • Replaces Waterway part number 817-2500
  • Replaces Premier Springwater part number 27-101
  • Replaces Beachcomber part number 3005845
  • Diameter: 4-15/16"
  • Length: 13-5/16"
  • Top Open Hole: 2-1/8"
  • Bottom Open Hole: 2-1/8"
  • Filter Area: 25 sq. feet
  • Fits Rainbow Dynamic In-Line 25 Sq Ft R172325
  • Filbur part number FC-2370
  • Unicel part number C-4625
  • Pleatco part number PRB25IN (PRB25-IN-4)
  • This is not an original Rainbow filter cartridge
  • Sold individually - 1 each

To clean your pool filter 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.

Additional Information
Delivery Time 2-5 Business Days
Manufacturer Pleatco
Technical Specs

Used with the following spa manufacturers:

  • Alps Spas
  • Aries Spas
  • Baker Hydro
  • Beachcomber
  • Blue Pacific
  • Continental Leisure
  • Ester W/Johnny W
  • Haugh's (Jacuzzi Leisure)
  • Haughs/Niagara Whirlpool
  • Heldor Spas
  • Hydro Pool
  • Hydro Pool/Serenity Spas
  • Icon Health & Spas
  • J.E.M. Spas
  • Jacuzzi Leisure/Haugh's
  • Johnny W/Ester W
  • Niagara Whirlpool (Haughs)
  • PDC Spas
  • Pentair/Rainbow
  • Premier Springwater (Verti-Pak)
  • Sequoia Design
  • Serenity Spas (Hydro Pool)
  • Warm Springs Spas
  • Waterway Plastics
SKU PLE-051-9174 / APCC7060
Manufacturer Part # R172325
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