Not sure how to measure your filter cartridge?
Check out this guide.
Brand Buying Guide
Identify your Trimline, Tri-Cartridge, MultiCyclone, or Opal cartridge and match the right replacement.
This guide helps you identify which cartridge your Waterco® filter takes and when to replace it. Start with the filter model on the tank label or the part number on the cartridge end cap, then match it to the right Excel Filters replacement.
Have your number? to jump straight to the matching replacement.
Rinse the cartridge with a garden hose every few weeks during swim season, spraying at an angle to flush debris from between the pleats. Deep-clean with a cartridge cleaning solution at least once a season to remove the oils and scale rinsing leaves behind — our care and maintenance guide covers the full routine. Most cartridges last 12 to 24 months: replace yours when cleaning no longer restores water flow, the pleats fray or stay discolored, or an end cap cracks.
Once you know which cartridge you need, shop Waterco® replacement filter cartridges in singles or money-saving multi-packs — engineered to OEM dimensions, made in the USA, and backed by our Perfect Fit Guarantee on listed cross-references.
Check the OEM part number printed on the end cap of your current cartridge, or measure its diameter, length, and both end caps. Every Excel Filters product page lists the Waterco® and aftermarket part numbers it replaces (Pleatco, Unicel, Filbur), and our how-to-measure guide walks through each dimension step by step.
Most pool and spa filter cartridges last 12 to 24 months depending on usage, debris load, and water chemistry. Replace the cartridge when cleaning no longer restores water flow, the pleats fray, or an end cap cracks. Rinsing the cartridge regularly during swim season extends its life.
Yes. Excel Filters replacement cartridges are manufactured in the USA and engineered to meet or exceed OEM specifications for Waterco® systems, with matching dimensions, end caps, and filtration media.
Yes. Every Excel Filters cartridge is covered by a 6-month limited warranty against defects in materials and manufacturing, and a 30-day return policy.
Standard shipping is free on all orders within the United States. Orders ship within 1–2 business days and typically arrive within 2–3 business days after that.
Browse 9 compatible Excel Filters replacements for Waterco® systems. View all Waterco® replacement filter cartridges.
XLS-938 1Pack
In stockReplaces 701038, C-9444
XLS-937 1Pack
In stockReplaces 701041, C-9443
XLS-660 3Pack
In stockReplaces 622820
XLS-659 3Pack
In stockReplaces 622830
XLS-661 1Pack
In stockReplaces 62453
XLS-750 1Pack
In stockReplaces 62050, PJAN100, C-7497, FC-5180
XLS-7023 1Pack
In stockReplaces 62150, 62051, C-7454, FC-5185
XLS-939 1Pack
Low stockReplaces 701040
XLS-662 1Pack
In stockReplaces 62451
