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Replaces CX900RE, 817-100, PA-90, C-8409
Fits & replaces
This Excel Filters cartridge (XLS-800) is a direct-fit replacement for Hayward CX900RE, Waterway ProClean Plus 100, and Sta-Rite Posi-Clear PXC-95 filter systems, cross-referenced with Pleatco PA90, Unicel C-8409, and Filbur FC-1292. Confirm the part number on your current cartridge — or its diameter, length, and end caps — before ordering.
Built to OEM dimensions for Hayward CX900RE, Waterway ProClean Plus 100, and Sta-Rite Posi-Clear PXC-95 cartridge filter systems, this replacement matches the original cartridge geometry, end-cap style, and media surface area — without the OEM markup. It directly replaces aftermarket Pleatco PA90, Unicel C-8409, and Filbur FC-1292 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-800 1PACK replacement cartridge is engineered for Hayward and built for dependable day-to-day filtration performance. Each cartridge is sized at 8 15/16" diameter x 17 3/8" length, with 4" ID w/ Gasket top and 4" ID w/ Gasket 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.
Match your filter housing below, 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
This Excel Filters cartridge fits Hayward® Star-Clear Plus C900 / CX900RE and Waterway® Clearwater II 100 applications when dimensions match. Cross-references include PA-90 and C-8409.
The product handle is a legacy SKU path. Use the on-page fit list and OEM part numbers to confirm compatibility, not the URL alone.
Match the OEM part number on your current cartridge or measure outer diameter, length, and end-cap styles before ordering.
XLS-801 1Pack
In stockReplaces CX760RE, PA-76, C-8411
XLS-802 1Pack
In stockReplaces CX1200RE, PA-120, C-8412
XLS-718 4Pack
In stockReplaces R173576, PCC105, Unicel C-7471, Filbur FC-1977
XLS-722 4Pack
In stockReplaces CX875RE, CX880XRE, PA106, C-7488, FC-1226
