Product Overview

The Filbur FC-6435 Replacement Cartridge 4-Pack is designed for compatible Hayward SwimClear C5025 and C5030 cartridge filters.

Each cartridge provides approximately 131 sq. ft. of filtration area, giving you a complete four-cartridge replacement set for the compatible 525 sq. ft. SwimClear filter system.

Filbur cartridges are engineered for dependable dirt-holding capacity, strong water flow, and long service life. The FC-6435 quad pack provides a convenient aftermarket replacement for the Hayward CX1280XRE / CX1280XREPAK4 cartridge set.

This complete four-pack allows all filter elements to be replaced together for balanced filtration performance and consistent system pressure.

Key Features & Benefits

• Complete 4-Pack – Replaces all four cartridges in compatible Hayward SwimClear filters.
• 131 Sq. Ft. Per Cartridge – Provides approximately 524 sq. ft. total filtration area across the complete set.
• Direct Hayward Replacement – Cross-references the CX1280XRE cartridge.
• Designed for C5025 & C5030 – Matches the four-cartridge configuration used in these SwimClear models.
• 7" Diameter – Matches the factory-style cartridge dimensions.
• 32-7/8" Length – Designed for proper fit inside compatible filter tanks.
• Durable Filtration Media – Engineered for effective debris capture and water flow.
• Complete Filter Refresh – Replacing all four cartridges together helps maintain even hydraulic resistance.
• Aftermarket Alternative – Provides a Filbur replacement option for Hayward OEM cartridges.

Specifications

Filbur directly lists FC-6435 at 7" OD, 32-7/8" length, 131 sq. ft., and UPC 645544064356.

Compatible Hayward Filters

The Filbur FC-6435 is designed for compatible Hayward SwimClear filters including:

• Hayward C5025
• Hayward C5030
• Compatible C5000 / C5020 installations using CX1280XRE cartridges

Hayward’s own replacement-cartridge documentation identifies CX1280XRE for C5000, C5020, C5025, and C5030 filters.

For the C5025, Hayward specifies four CX1280XRE cartridges.

For the C5030, Hayward also specifies four CX1280XRE cartridges, or one CX1280XREPAK4 complete set.

Cross-Reference Part Numbers

Filbur’s current product data directly cross-references FC-6435 to Hayward CX1280RE Quad and Pleatco PA131-PAK4.

Cartridge Dimensions

Each cartridge measures approximately:

7" Outside Diameter
32-7/8" Length
131 Sq. Ft. Filtration Area

Always compare the cartridge dimensions and existing part number before ordering, particularly on older SwimClear installations.

Complete 525 Sq. Ft. Filter Set

Hayward refers to the C5025/C5030 family as approximately 525 sq. ft. filtration systems.

The four Filbur cartridges provide:

131 sq. ft. × 4 = approximately 524 sq. ft.

Minor differences in advertised square footage between replacement cartridge manufacturers are normal due to differences in how pleated media area is measured.

The important compatibility factors are the physical dimensions, cartridge count, and OEM cross-reference.

Why Replace All Four Cartridges Together?

Replacing the entire cartridge set at the same time helps maintain:

• Balanced water flow
• Similar dirt-loading characteristics
• Consistent filter pressure
• Even filtration performance
• Easier maintenance scheduling
• Similar service life among all elements

Mixing heavily used cartridges with brand-new elements can create uneven hydraulic resistance inside the filter.

Maintenance Tips

For maximum cartridge life:

• Rinse each cartridge thoroughly with a garden hose.
• Clean carefully between the pleats.
• Avoid excessive water pressure that can damage the filtration media.
• Inspect the center core and end caps during every cleaning.
• Replace cartridges that are torn, cracked, collapsed, or permanently clogged.
• Maintain proper pool-water chemistry.
• Follow Hayward’s recommended cleaning intervals based on filter pressure.

Frequently Asked Questions

How many cartridges are included with FC-6435?
Four cartridges are included.

How much filtration area does each cartridge have?
Approximately 131 sq. ft. per cartridge.

Does FC-6435 fit the Hayward C5030?
Yes. Hayward specifies four CX1280XRE cartridges for the C5030, and FC-6435 cross-references that cartridge family.

Does it fit the Hayward C5025?
Yes. Hayward specifies four CX1280XRE cartridges for the C5025 as well.

What is the Hayward OEM cross-reference?
CX1280XRE for the single cartridge and CX1280XREPAK4 for the four-pack.

What are the cartridge dimensions?
Approximately 7" diameter × 32-7/8" long.

Is this genuine Hayward?
No. This is a Filbur aftermarket replacement cartridge set designed for compatible Hayward SwimClear filters.

What is the UPC?
645544064356.

Why Buy From Pool Supply Depot?

Pool Supply Depot supplies replacement filter cartridges, complete filters, pumps, heaters, automation systems, salt systems, lighting, and OEM and aftermarket pool equipment nationwide.

If you're unsure whether FC-6435 fits your filter, send us the Hayward filter model or the part number printed on the existing cartridge, and our team can help verify compatibility before ordering.

Order the Filbur 131 Sq Ft SwimClear C5025/C5030 Replacement Cartridge 4-Pack | FC-6435 from Pool Supply Depot today.