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Replaces Waterco Part # 701040
Fits & replaces
This Excel Filters cartridge (XLS-939) is a direct-fit replacement for Waterco Opal XL C225 (701040) filter systems, cross-referenced with OEM Waterco® 701040. Confirm the part number on your current cartridge — or its diameter, length, and end caps — before ordering.
Built to OEM dimensions for Waterco Opal XL C225 (701040) cartridge filter systems, this replacement matches the original cartridge geometry, end-cap style, and media surface area — without the OEM markup. It directly replaces OEM Waterco® 701040 part numbers — the full cross-reference list is in the Compatibility tab. Every cartridge is manufactured in our Austin, TX facility, ships free, and is backed by the Excel Filters Perfect Fit Guarantee on its listed cross-references.
The XLS-939 1PACK replacement cartridge is engineered for Waterco and built for dependable day-to-day filtration performance. Each cartridge is sized at 10 3/10" diameter x 21 3/5" length, with Open End top and Open End bottom end caps for direct-fit installation with no housing modifications.
Measure your old cartridge cap-to-cap. A variance of ⅛" is normal — anything larger likely means a different housing model.
Click any part number to verify the fit, or paste your existing part number into the search box.
Filter housings and systems this cartridge fits
OEM and competitor cartridge part numbers this product replaces
XLS-659 3Pack
In stockReplaces Waterco Part # 622830
XLS-660 3Pack
In stockReplaces Waterco Part # 622820
XLS-938 1Pack
In stockReplaces Waterco 701038
XLS-937 1Pack
In stockReplaces WaterCo 701041
