POOLPURE Pool Filter Cartridge PLFPWWCT75 replacement for Hayward/Unicel — 75 sq ft, 50‑micron trilobal

The POOLPURE PLFPWWCT75 is a direct-fit replacement pool filter cartridge that delivers 75 sq. ft. of trilobal, 50-micron filtration for clearer, longer-lasting pool water.

Designed as a compatible upgrade for several popular OEM cartridges, this POOLPURE filter combines a high-surface-area trilobal fabric, dirt-locking technology, and reinforced construction to trap fine particles while standing up to frequent use. It fits many Hayward, Waterway, Unicel, and other models, offering a durable, NSF/ANSI 50-tested option for homeowners and facilities that need reliable performance without the OEM price.

Will this cartridge fit my existing filter housing?

Measure your old cartridge or check your manual to confirm a match: the PLFPWWCT75 measures 17 3/8" long with an 8 15/16" outer diameter and 4" open top and bottom connections. It is engineered to be compatible with a long list of models often listed under Hayward, Waterway Clearwater II 75, Unicel C-8411 and related part numbers—POOLPURE is an independent replacement brand, so cross-reference dimensions before ordering.

• Length: 17 3/8" (441 mm)
• Outer diameter: 8 15/16" (227 mm)
• Top & bottom opening: 4" each
• Compatible examples: Hayward CX760RE, C760, Waterway Clearwater II 75, Unicel C-8411

How effectively does this filter remove fine debris?

The PLFPWWCT75 uses a trilobal filtration fabric and a 50-micron fine layer to capture very small particles such as hair, dust, sand, and other sediment. Its trilobal fibers create greater surface area for adsorption and the dirt-locking structure holds debris until you rinse the cartridge, improving clarity between cleanings.

• Filtration area: 75 sq. ft. for extended contaminant capture
• Nominal rating: 50 micron fine-filtration layer
• Trilobal fibers: increased adsorption surface vs. standard fabrics
• Patented dirt-locking design for easier rinsing and maintenance

How durable and easy to maintain is this replacement cartridge?

Built with thickened polyester fabric, reinforced ABS end caps, and a strengthened integrated core, the cartridge resists wear and keeps structural integrity longer than typical replacements. It’s reusable: rinse off trapped debris during routine maintenance and reinstall, reducing the frequency and cost of replacements.

• Fabric: 4 oz. thickened polyester for long life
• End caps: reinforced ABS for secure seals
• Core: strengthened for improved longevity and reduced collapse risk
• Maintenance: rinse-cleanable thanks to dirt-locking fiber structure

Is this filter certified and trusted for regular pool use?

POOLPURE cartridges are tested against NSF/ANSI 50 material safety standards, ensuring filter components do not leach harmful substances into water during normal use. The brand also supports competitive aquatic programs and adheres to industry guidance, reflecting a focus on consistent filtration performance for both residential and higher-demand settings.

• Safety testing: NSF/ANSI 50 (IAPMO-tested materials)
• Industry affiliation: Pool & Hot Tub Alliance (PHTA) member
• Real-world validation: used in training and athletic settings
• Trusted by millions: designed for frequent, reliable use

Who is this for? The POOLPURE PLFPWWCT75 is a practical choice for pool owners, condo and HOA maintenance teams, and athletic facilities seeking a cost-effective, high-performance replacement cartridge that fits common housings. If you want a reusable filter with higher surface area, reliable fine-particle capture, and reinforced construction for longer service life, this cartridge is worth considering. Always confirm dimensions and compatibility with your filter housing before purchase.