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Unicel® C-8420 Replacement Filter Cartridge – 200 Sq Ft

Unicel® C-8420 Replacement Filter Cartridge – 200 Sq Ft

Regular price $168.09
Regular price Sale price $168.09
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Fits Hayward CX1900RE/CX2020RE & Waterway Pro Clean Series

Think of this as the gold-standard coffee filter for your pool—except it catches sand, algae and debris down to 20 microns, not grounds. With 200 sq ft of heavy-duty, 4-oz polyester media and 236 pleats, the C-8420 keeps your water sparkling-clear season after season—so you can focus on cannonballs, not cleaning.


Key Features

  • 200 Sq Ft of Media (4-oz basis weight polyester) for massive dirt-holding capacity

  • 236 Pleats maximize surface area and extend run times between cleanings

  • 20 Micron Rating catches fine particles so your pool stays crystal clear

  • Universal Open End Caps with molded gaskets (4″ inner diameter) for a watertight seal

  • Drop-In Fit for Hayward CX1900RE, CX2020RE & Waterway Pro Clean filter housings

  • Made in USA—quality you can trust



Safety & Maintenance Tips

  • 🔧 Always shut off the pump and relieve system pressure before removing or installing the cartridge.

  • 🗓️ Replace every 1–2 seasons (or when differential pressure rises 8–10 psi) to avoid reduced flow or damage.

  • ♻️ Dispose of used cartridges responsibly—captured debris can include chemicals and fine sediment.

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