Pool Filter Cartridge for CX 1380 - Replaces C5520, FC-6455

Overview

Give your large pool the powerful, low-maintenance filtration it deserves with the Poolzilla replacement cartridge for Hayward C5500 and C5520 filter systems. Built tall and lean at 32.75 inches in length with a 7-inch outer diameter, this cartridge is specifically engineered for high-capacity Hayward SwimClear housings — meaning more pleated filtration surface, more dirt-holding capacity, and dramatically fewer cleanings throughout swim season. The deep-pleated polyester media captures everything from leaves and bugs to ultra-fine particles smaller than a strand of hair, so your pool stays brilliantly clear even during peak summer use. Heavy-duty molded end caps with a 3-inch center hole create a leak-proof seal in your manifold, preventing the bypass that lets dirty water slip past a poorly fitted filter. The result? Crisp, sparkling water with less effort and a pump that doesn't have to work overtime to deliver it.

For best results, plan to rinse your cartridges every four to six weeks during swim season and replace them every one to two years, or sooner if you notice your filter pressure climbing 8–10 PSI above its normal clean reading. A fresh set of cartridges does more than just keep your water clear — it reduces strain on your pump, cuts down on chemical usage, and ensures the water your family swims in is genuinely clean. Replacement is refreshingly simple: power off the pump, release the air relief valve, open the housing clamp, lift out the old cartridges, drop in the new Poolzilla filters, and reassemble. The whole job takes about fifteen minutes. Order your set today and head into swim season with the confidence that your SwimClear is ready to deliver crystal-clear water all summer long.

What's Included

Your order includes the selected quantity of replacement pool filter cartridges. Each unit is individually inspected for quality before shipping.