Cartridge Filters

Shop premium cartridge filter systems for superior pool water clarity and hassle-free maintenance. Our cartridge pool filters provide excellent filtration without backwashing, making them perfect for pools with limited water access. Featuring easy-clean removable cartridge elements and energy-efficient operation. Browse leading brands with fast shipping and expert support. Complete your filtration setup with our selection of replacement filter cartridges for optimal performance.

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Pool filter cartridges

Replacement Cartridges Make Maintenance Simple

A new cartridge filter system comes with a full set of filter elements—but over time, those cartridges clog with debris, oils, and fine particles. Eventually, they’ll need to be cleaned or replaced to keep your system running efficiently.

Many pool owners keep two sets of cartridges on hand—so when it’s time to clean, you can simply swap in a fresh set and deal with cleaning the dirty ones later. It saves time, reduces downtime, and keeps your pool water consistently clear.

🧼 Explore compatible replacement cartridges built for long life, easy cleaning, and a precise fit.

Let Your Filter Focus on Filtration

Pool filters remove tiny particles—but they work best when your pool is free of larger debris like leaves, dirt, and algae. That’s where an automatic pool cleaner comes in. Robotic models like the Nautilus CC scrub floors and walls, capturing debris before it ever reaches your filter.

Less debris in the system means longer filter cycles, cleaner cartridges, and better water clarity—all with less manual work.

🤖 Explore our Automatic Pool Cleaners collection to find a model that fits your pool and budget.

Frequently Asked Questions

Can I use flocculant with a cartridge filter?
It’s not recommended to use flocculant with cartridge filters, unless you have a way to recirculate water without passing it through the filter. Otherwise, floc might clog and damage the cartridge element.
Do I need a filter valve (multiport or slide valve) with cartridge filters?
Most cartridge filters don’t require a multiport or slide valve, since backwashing isn’t needed. You simply remove and rinse the cartridges when cleaning is necessary.
How often should I clean filter cartridges?
Clean filter cartridges every 4–6 weeks, or more often if pool use is heavy or water clarity declines. Regular cleaning helps maintain flow and filtration efficiency.
How often should I replace filter cartridges?
Cartridge filters usually need replacing every 1–2 years. If you notice decreased water flow, persistent cloudiness, or visible damage to the cartridge, it’s time for a new one.
Why choose cartridge filters for your pool?
Cartridge filters are ideal for limited space, require less work to replace cartridges compared to DE grids or sand media, and offer good filtration—removing small particles effectively. They’re simple to maintain and fit most pool setups.

Frequently Asked Questions

Can I use flocculant with a cartridge filter?
It’s not recommended to use flocculant with cartridge filters, unless you have a way to recirculate water without passing it through the filter. Otherwise, floc might clog and damage the cartridge element.
Do I need a filter valve (multiport or slide valve) with cartridge filters?
Most cartridge filters don’t require a multiport or slide valve, since backwashing isn’t needed. You simply remove and rinse the cartridges when cleaning is necessary.
How often should I clean filter cartridges?
Clean filter cartridges every 4–6 weeks, or more often if pool use is heavy or water clarity declines. Regular cleaning helps maintain flow and filtration efficiency.
How often should I replace filter cartridges?
Cartridge filters usually need replacing every 1–2 years. If you notice decreased water flow, persistent cloudiness, or visible damage to the cartridge, it’s time for a new one.
Why choose cartridge filters for your pool?
Cartridge filters are ideal for limited space, require less work to replace cartridges compared to DE grids or sand media, and offer good filtration—removing small particles effectively. They’re simple to maintain and fit most pool setups.

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