
145 SqFt Cartridge Filter
Product Overview
Pool technicians specify Filbur cartridges for the CL580 and CV580 systems because they maintain precise pleat spacing under high pressure.
This 145 SqFt genuine replacement cartridge is engineered specifically for the CL580 and CV580 filter housings. Filbur utilizes high-quality polyester media that provides consistent filtration down to 20 microns, ensuring water clarity without the flow restriction often seen in generic alternatives. In our experience, these cartridges reliably handle the debris load of large residential pools while maintaining structural integrity over multiple cleaning cycles.
Benefits & What Makes It Different
145 Square Feet of Media
Provides ample surface area to trap fine particulates like pollen and dust, reducing the frequency of manual cleanings for your CL580 or CV580 system.
Precision Fit for Jandy Housings
Designed with exact tolerances to ensure a tight seal within the filter manifold, preventing bypass where unfiltered water returns to the pool.
Reinforced Core Support
The internal core is built to withstand the high-pressure spikes of variable speed pumps, preventing the pleats from collapsing or tearing during operation.
Compatibility
- Jandy CL580 Filter Housings
- Jandy CV580 Filter Housings
- Filbur FC-1978 equivalent specifications
When To Use This
Pro Tip
When cleaning, avoid using a high-pressure power washer as it can tear the fibers; instead, use a specialized cartridge cleaning tool or a garden hose at a 45-degree angle to flush debris from deep within the pleats.
Common Questions & Instructions
How do I know if my 145 SqFt cartridge needs to be replaced?
You should replace the cartridge when the pressure gauge on your CL580 or CV580 reads 8-10 PSI above the "clean" starting pressure, or if you notice visible fraying or permanent staining that limits flow even after a deep soak.
How many of these cartridges does my filter housing require?
The CL580 and CV580 models are large-capacity systems that utilize a set of four 145 SqFt cartridges to reach the total 580 square foot filtration rating required for the unit.
How often should I swap out these Filbur cartridges for new ones?
While cleaning intervals vary by debris load, we typically see homeowners replace the full set every 12 to 24 months to maintain optimal hydraulic efficiency and water clarity throughout the swim season.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.



