Pool Filter Cartridges

Match the cartridge to your filter housing model and pool pump flow rate, check cartridge dimensions and pleat area, and confirm the micron rating or filtration efficiency; consult your filter manufacturer's specs for compatible part numbers

Cartridges vary by length, outer diameter, and inner core diameter; exact dimensions are critical because an incorrect size can cause leaks, poor filtration, or damage to the filter housing, so measure the old cartridge or consult the filter model manual

Clean reusable cartridges every 4–6 weeks or sooner if pressure rises significantly; replace the cartridge when material is frayed, pleats are damaged, or cleaning no longer restores normal pressure—typical replacement intervals are 1–3 years depending on use and water conditions

Lower micron ratings capture finer particles but may clog faster; more pleats and higher-quality polyester media increase surface area and longevity; look for materials resistant to chemicals and mildew for longer service life

Many aftermarket cartridges are compatible and cost-effective, but verify exact fit, materials, and pressure ratings against the OEM specifications to ensure safe operation and maintain warranty conditions where applicable

Clean, properly functioning cartridges reduce pump strain and maintain flow, lowering energy use; regular cleaning also reduces the need for backwashing or water replacement, saving water over time

Pool filter cartridges typically range from budget options under $50 to higher-end units over $150, with an average around $80; higher-priced cartridges often use better media, thicker cores, and more pleats, which can extend life and filtration performance