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Description
Bring your pool or spa filtration system back to peak performance with the Unicel C-4320 Replacement Filter Cartridge. Designed to OEM specifications, this 20 sq. ft. cartridge is a direct-fit replacement that delivers dependable filtration, improved water clarity, and long-lasting performance for smaller pool and spa systems.
Built with spunbonded 100% polyester (3 oz. Reemay®) filter media, the C-4320 captures fine debris while maintaining strong, efficient water flow. Its tightly pleated design maximizes surface area, helping extend time between cleanings and supporting consistent system operation. Whether you’re replacing a worn cartridge or keeping a spare on hand, this Unicel filter offers reliable results at an excellent value.
Key Features & Benefits
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20 square feet of effective pleated filtration media
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Durable 3 oz. Reemay® polyester for fine particle capture
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Helps maintain clean, clear, and balanced water
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Built to OEM dimensions for a secure, hassle-free fit
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Strong core and end caps for long service life
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Easy, drop-in installation—no modifications needed
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Ideal as a replacement or backup cartridge
Installation & Maintenance Tips
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Power off the system and relieve pressure before servicing
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Clean the filter housing prior to installing the new cartridge
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Rinse the cartridge regularly to extend lifespan and maintain flow
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Replace when pleats show wear, damage, or reduced performance
For pool and spa owners who want OEM-quality filtration without the OEM price, the Unicel C-4320 Replacement Filter Cartridge is a dependable solution that protects your equipment and keeps your water swim-ready all season long.
Specs
Pool Goods genuinely cares about what they do. It shows in their work and in the way they treat others. They are experts in their field, provide the correct information, and their experience is un-matched.
At Pool Goods®, we promise to be your partner in achieiving the perfect pool and spa environment, one that is stress-free, efficient and enjoyable.