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Replacement Filter Cartridges
Excel Filters carries premium replacement filter cartridges for Waterco® pool and spa systems, offering outstanding filtration and long-term value. Built for efficiency and consistent clarity, our Waterco compatible filter cartridges help you maintain clean, safe water with confidence throughout the swim season.
No cartridges match these filters.
XLS-938 • 1-Pack
In stockReplaces: Waterco 701038, Unicel C-9444
XLS-937 • 1-Pack
In stockReplaces: Waterco 701041, Unicel C-9443
XLS-660 • 3-Pack
In stockReplaces: Waterco 622820
XLS-659 • 3-Pack
In stockReplaces: Waterco 622830
XLS-661 • 1-Pack
In stockReplaces: Waterco 62453
XLS-750 • 1-Pack
In stockReplaces: Jandy A0103400, Pleatco PJAN100, Unicel C-7497, Filbur FC-5180
XLS-7023 • 1-Pack
In stockReplaces: Waterco 62150, Unicel C-7454, Filbur FC-5185
XLS-939 • 1-Pack
Low stockReplaces: Waterco 701040
XLS-662 • 1-Pack
In stockReplaces: Waterco 62451
Shop Waterco® replacement cartridge filters built to manufacturer dimensions for popular Waterco pool filter housings. Match your Waterco® part number or measured size for a direct-fit, USA-made Excel Filters cartridge at factory-direct pricing.
The easiest way to find the correct replacement is to identify your Waterco® filter housing model or the manufacturer cartridge part number printed on your existing cartridge.
If the part number is unavailable, measure your cartridge’s outside diameter, length, and end-cap style to confirm the correct replacement.
For help identifying your filter system, see our Waterco® Filter Buying Guide or use our Waterco® Cross-Reference Charts to match your existing cartridge to the correct Excel Filters replacement.
The Waterco® Opal XL 270 filter system uses two different cartridge sizes that work together in the same housing. Unlike most multi-cartridge filters that use identical elements, the Opal XL 270 requires one of each of the following Excel Filters replacement cartridges: XLS-937 1-Pack (1 cartridge required) and XLS-938 1-Pack (1 cartridge required).
Both cartridges must be replaced together to maintain proper fit, water flow, and filtration performance.
Important: the two cartridges are connected together using the original Waterco® coupling connector. This connector must be removed from your existing cartridges and reused during installation. The connector is not included with the replacement cartridges and is not available from Excel Filters.
Before ordering, verify your Waterco® Opal XL 270 filter housing model or existing cartridge part numbers. If you need assistance, see our Waterco® Filter Buying Guide or Waterco® Cross-Reference Charts.
Excel Filters cartridges are aftermarket replacement cartridges manufactured in the USA and engineered to match Waterco® cartridge specifications, including fit, dimensions, and filtration area.
Excel Filters is an independent manufacturer and is not affiliated with or endorsed by Waterco® unless specifically stated.
Excel Filters manufactures replacement cartridges in the USA using premium filtration media and engineered components designed for reliable fit and performance.
By selling factory-direct, Excel Filters provides a high-quality replacement option without the additional distributor and retail markups commonly associated with manufacturer-branded cartridges.
