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Unicel C-8420 Replacement Filter Cartridge
Part Number: C-8420
Description
A high-capacity replacement cartridge offering approximately 200 sq ft of filtration media, designed for superior debris capture and extended filter run times in residential pool systems.
Compatibility & Fitment
- Fits filter tanks that specify the C-8420 cartridge or equivalent geometry (approx. 8-15/16″ outer diameter × 28-3/16″ length with open 4″ end caps).
- Ideal when the existing cartridge shows high pressure, reduced flow, media tearing or collapse, or when extended filtration performance is desired.
Features & Specifications
- Filtration area: ~200 sq ft of media.
- Construction: Pleated polyester media for durability and effectiveness.
- Dimensions: Outer diameter approx. 8-15/16″; Length approx. 28-3/16″; Open both ends with molded gasket.
- Media rating: Fine particle capture to support clearer water and longer filter cycles.
Installation Notes
Shut off the pump and relieve system pressure. Open the filter tank and remove the old cartridge element. Clean the tank interior and inspect gaskets/O-rings for wear. Install the new C-8420 cartridge, ensure proper seating and alignment, reassemble the filter, restore circulation and monitor pressure drop to confirm proper installation.
Maintenance Tip
Inspect the cartridge annually or when you observe increased pressure or reduced flow. Rinse the cartridge and consider a cleaner soak if needed. Replace the cartridge if rinsing no longer restores acceptable performance, media is damaged, or the pleats are collapsed.
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