Cartridge Set (4PK) Replacement Fits SwimClear® C-4025/C-4030 by Optimum Pool Technologies

Save $80.01
Optimum Pool TechnologiesSKU: OPT-425-4PK

Sale price$159.99 Regular price$240


This complete set of 4 filter cartridge elements is proudly made in the USA by Optimum Pool Technologies (OPT) who offers high-quality replacement cartridges specifically designed to replace those found in the SwimClear® C-4025/C-4030 pool filter.

These filter cartridges each contain 106 square feet of pleat material in each cartridge, totaling 424 square feet of filtration. We guarantee compatibility with your filtration system!

Only need to replace 1 cartridge? We also offer a single Optimum Pool Tech. replacement pool filter cartridge for the SwimClear® C-4025 filter tank.


  • Made in USA with high quality filtration media that was made specifically for durability and cleanability. Includes support bands around each cartridge element.
  • Replacement Filter Cartridges For: Hayward® Swim Clear® C4020, C4025, C-4025, C880E, Super-Star-Clear® C870, Super Star Clear®  C4000, C4000S. 106 SQ.FT. Pool Filter Cartridge
  • Inside Diameter: 3"
  • Outside Diameter: 7”
  • Length: 25-1/2”
  • Four 106 sq. ft. cartridges required.
  • Replaces Parts: OEM# CX-870, CX870RE, CX870XRE, CX880RE, CX880XRE, 880, Unicel®# C-7487, C-7487-4, C-7488, C-7488RA Pleatco®# PA100N, PA100N-4, PA100N-M, PA100N-PAK4, PA-106, PA106-M, PA106-4, PA106-PAK4, PA112, PA112-4, PA112-M, Filbur®# FC-1226, FC-1226M, FC-1270, FC-1275, FC-6430, FC-6445, Aladdin®# 20601, 19902
  • Includes support bands around each cartridge element.
Statements of compatibility here are 100% guaranteed by Pool Guy Supply, Inc. and are not attributable to or made by Hayward® or any other original equipment manufacturer (OEM) of products sold on this website.

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Customer Reviews

Based on 36 reviews
Lisa Zurawicki
Great filters

Ordered & received in a few days! The price was even lower than last year!

Mary Stanford

Cartridge Set (4PK) Replacement Fits SwimClear® C-4025/C-4030 by Optimum Pool Technologies

Scott McCaverty
Perfect replacement

The filters work perfectly and there’s no faster shipping than with these guys.

Marie Ames

A little concerned about purchasing the right filters. However, with the help of Pool Guy Supply, purchased the right filters and now have a clean pool. Thanks!

Jason B
Perfect fit

I ordered a set of 4 replacement filters for my Hayward pool filter, and they fit perfectly. I saw an instant improvement in the clarity and cleanliness of my pool water, all at a substantial savings of the cost of OEM filters.

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