XLS-403 Replacement Spa Filter Cartridge 15 PACK for Waterway Rainbow Dynamics 25. Also replaces Waterway 817-2500, PRB25-IN, C-4326, FC-2375

XLS-403 15PACK

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  • Regular price $269.99

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Excel tirelessly works to advance the science of water filtration. As a result, we’ve designed pool & spa filter cartridges that are more efficient, longer lasting and ultimately provide cleaner, clearer water.

Engineered to Clean
We use only premium-grade, ultra-efficient media along with Black Diamond end caps and a sturdy structural core. Our use of premium materials coupled with efficient flow dynamics provides our customers a longer useful filter life, high effectiveness and low energy use.

Excel Filters are made in the USA and include a 6-month warranty and 12-month service life.

About This Product

# of Cartridges Included
Diameter 4 15/16"
Length 13 5/16"
Top End Cap 2 1/8" Open End
Bottom End Cap 2 1/8" Open End
Pleatco PDC25-AFS PRB25-IN PRB37-IN PRB50-IN
Filbur FC-2370 FC-2375 FC-2380 FC-2390 FC-2392
Unicel C-4326 C-4401 C-4625 C-4637 C-4950

After you upgrade to Excel Filters we recommend cleaning your new filter cartridges after an initial pass. Because Excel Filters are so effective they'll remove debris left behind by your previous cartridges

Excel Filters are easy to clean. We recommend filter rotation – while cleaning your filter cartridges, swap them with clean, dry spares. This keeps the water filtration cycle going and no wait to use your pool or spa with the added benefit of your filter cartridges lasting longer.

Click here for step-by-step cleaning instructions ▸

We love hearing from pool enthusiasts and professionals who frequently tell us our filter cartridges are the best they've owned. We hope we've earned your sparkling review.

This product contains chemical Acrylonitrile that is linked to California State Prop 65. Please visit this website for more information.