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Replacement Filter Cartridges
Replacement cartridge sets for the Waterco® Fulflo tri-cartridge filters (C400 / TC400 and C500 / TC500). Each Fulflo housing runs three cartridges — our 3-packs replace the full set.
No cartridges match these filters.
XLS-660 • 3-Pack
Low stockReplaces: Waterco 622820
XLS-659 • 3-Pack
In stockReplaces: Waterco 622830
Excel Filters makes replacement cartridges for Waterco® Fulflo tri-cartridge filters — the C400 / TC400 and C500 / TC500. Each Fulflo housing takes three cartridges, so our 3-packs replace the complete set at factory-direct pricing.
Fulflo tri-cartridge tanks run three cartridges. Replace all three together for even flow.
| Housing model | Waterco element | Pleatco | Filbur | Excel replacement | Qty per housing |
|---|---|---|---|---|---|
| Fulflo C400 / TC400 | 622820 | — | — | XLS-660 3-pack | 3 |
| Fulflo C500 / TC500 | 622830 | — | — | XLS-659 3-pack | 3 |
Three identical cartridges per housing. Our Fulflo replacements are sold as 3-packs so one pack replaces the complete set.
The model is on the tank: the TC400 takes the XLS-660 and the TC500 the XLS-659. Both cartridges are 6 3/16" x 31 1/4" with 2" open ends, so measuring cannot tell them apart; if the label is gone, use the Waterco number on the old cartridge (622820 for the TC400, 622830 for the TC500).
No. Excel Filters cartridges are aftermarket replacements manufactured in the USA to OEM dimensions and media area. They are not affiliated with or endorsed by Waterco.
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