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Hercules Spas

We offer over 200 of the most popular replacement filter cartridges on the market, including replacements for Unicel, Filbur, Pleatco, and OEM products. To find your filter by selecting the dimensions below.
Watch the video for advice on how to measure your cartridge.

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showing 1 - 4 of 4 products

404-158 Spa Filter Cartridge Pair

Guardian Filtration

Replaces: Unicel C-4401, Pleatco PRB17.5SF-JH-PAIR, Filbur FC-2386

Sale!

~~$35.00~~ $19.99

4H6-200 Spa Filter Cartridge

Guardian Filtration

Replaces: Unicel 4CH-20 Filbur FC-0185 Pleatco PSG25P4

Sale!

~~$29.99~~ $20.00

719-111 Pool Filter Cartridge

Guardian Filtration

Replaces: Unicel C-7656 Filbur FC-1240 Pleatco PA50

Sale!

~~$45.00~~ $31.00

719-111-M Pool Filter Cartridge

Guardian Filtration

Replaces: Unicel C-7656RA Filbur FC-1240M Pleatco PA50-M

Sale!

~~$52.00~~ $34.00