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Compatible Replacement for Hayward CX1750RE. Cross-References Pleatco PA175, Unicel C-8417 and Filbur FC-1294.
SKU XLS-803 1PACK · UPC 810625020617
Confirm your fit
Built to OEM dimensions for Hayward StarClear Plus C1750, CX1750RE, and Waterway ProClean 175 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 Hayward® C1750 and aftermarket Pleatco PA175, Unicel C-8417, and Filbur FC-1294 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-803 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 28 3/16" 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, then across the widest pleat.
How to measure a cartridge →Measuring your old cartridge
A variance of ⅛" is normal. Anything larger usually means a different housing model — check the number printed on your old cartridge against the compatible parts list before ordering.
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
The Perfect Fit Guarantee applies to the cross-references listed here. Brand names, models and part numbers identify compatibility only. If your housing is not listed, reach out to our team before ordering.
Can't find your part number? Look it up on the full pool filter cartridge cross-reference chart.
Still unsure after reading these? Send us the number stamped on your old cartridge and we will confirm the fit.
The Excel Filters XLS-803 replaces Hayward CX1750RE, and aftermarket equivalents Pleatco PA175, Unicel C-8417, Filbur FC-1294.
It fits Waterway ProClean 175, Waterway ProClean 200; Hayward StarClear Plus C1750, Hayward StarClear Plus C1900; Sta-Rite PXC-125, Sta-Rite PXC-150. If your housing is not listed, match the part number stamped on your current cartridge on our cross-reference chart.
8 15/16" diameter, 28 3/16" long, 175 ft² of media (end caps — top: 4" ID w/Molded Gasket, bottom: 4" ID w/Molded Gasket). Measure your old cartridge before ordering if you are unsure of the part number.
No. The XLS-803 is an independently manufactured replacement cartridge, made in the USA by Excel Filters and built to match the Hayward CX1750RE specification. Hayward is a trademark of its owner, used only to show compatibility.
Most pool and spa cartridges last 1–2 seasons with regular rinsing. Replace it when cleaning no longer restores flow, the pleats fray, or the end caps crack.
XLS-805 • 1-Pack
In stockReplaces: Hayward CX1100RE, Pleatco PA100, Unicel C-8610, Filbur FC-1290
XLS-822 • 1-Pack
Low stockReplaces: Hayward CX1520RE, Pleatco PWWCT150, Unicel C-8414, Filbur FC-1287
*Perfect Fit Guarantee applies to the OEM and aftermarket cross-references listed on this page; brand names, models and part numbers identify compatibility only. We ship to the 48 contiguous United States only; free standard shipping applies to those orders with no order minimum, and expedited service is priced at checkout. Every cartridge carries a 6-month limited warranty against defects in materials and manufacturing, separate from our 30-day return policy.
