Cartridge Style Pool Filter Systems

Discover our collection of high-performance pool filter cartridges and advanced filtration systems designed for swimming pool owners who demand swim-ready crystal clear water all season long. At Pool Depo, you can shop top products from renowned manufacturers like Pentair, Unicel, and our trusted in-house brand, Aquamax. Whether you’re maintaining a backyard pool or overseeing a high-traffic recreational space, you’ll find precisely what you need to simplify maintenance and improve water quality.

Why Use Cartridge Pool Filters?

Cartridge-style pool filters stand out for their exceptional filtration capabilities, straightforward maintenance, and environmentally friendly design. Unlike traditional sand or DE filters, cartridges offer a water-saving approach, which not only reduces utility costs but also supports sustainable pool ownership. That’s why cartridge filters are a go-to solution for both do-it-yourself enthusiasts and experienced pool care professionals.

Top Benefits

• Effortless upkeep—simply rinse the cartridge periodically and reuse; there’s no complicated disassembly or messy handling.
• Eliminates the need for backwashing, saving thousands of gallons of water each season and cutting down on maintenance time.
• Effectively traps fine debris, dust, pollen, and smaller particles to deliver exceptionally clear swimming water.
• Universally suitable for in-ground and above-ground pools, making them adaptable to a wide range of pool setups.

Shop by Product Type

Cartridge Filter

Browse our complete cartridge filter systems, which include both the durable housing unit and an internal filter cartridge. These systems are ideal for new pool installations, major equipment upgrades, or replacing worn-out filters. With robust construction and reliable filtration, they help ensure consistent water clarity and simple, stress-free pool care.

Filter Cartridge

Discover replacement cartridges compatible with leading systems from brands like Pentair and Unicel. A fresh cartridge quickly revives your filtration performance, so you always enjoy optimal water quality. These replacements are crafted to fit most standard housings on the market, enabling straightforward and cost-effective system maintenance.

RP Filter

These premium cartridges are engineered to operate at higher flow rates with less energy, making them perfect for demanding pools or setups focusing on efficiency and reduced operational costs. If you’re seeking optimal filtration with a lower environmental footprint, RP models are an excellent choice.

How to Choose the Right Cartridge Filter

Selecting your ideal cartridge filter comes down to a few critical factors—the unique characteristics of your pool and your system’s requirements. Consider the following:

• Cartridge square footage: Filters are available in various sizes (such as 75, 150, or 200 square feet), with larger areas offering higher dirt-holding capacity and reduced cleaning frequency for bigger pools.
• Compatibility with your existing filter housing: It’s essential to match your replacement cartridge to your system. Confirm whether your housing is designed for models like Clean & Clear or SwimClear to prevent installation issues.
• Flow rate requirements: Always choose a filter that meets or exceeds your pool pump’s gallon-per-minute (GPM) flow rate to ensure efficient, thorough filtration.

If you’re uncertain or want help narrowing down your options, our knowledgeable support team is only a click away through live chat. We’ll help you find the exact filter solution suited to your needs and equipment.

Pool Filter Cartridges FAQs

How often should I replace a pool filter cartridge?

Generally, cartridges require replacement every 12 to 24 months, though this can vary depending on pool usage, chemical balance, and local water conditions. Inspect the cartridge regularly and replace it if you notice tears, reduced flow, or persistent water clarity issues.

Are Unicel cartridges compatible with Pentair systems?

Yes, many Unicel cartridges are engineered specifically to fit Pentair housings, along with systems from other major brands. However, always check your cartridge’s model number or consult with our team before ordering to guarantee the right fit.

What’s the difference between a system and a replacement cartridge?

A cartridge filter system consists of the filter housing, internal cartridge, and all plumbing connections required for a complete installation. A replacement cartridge is the internal element alone, designed to fit within existing housings when your current one has reached the end of its service life.

Need Help Finding the Right Filter?

Your perfect filtration solution is just a question away. Reach out for personalized product recommendations and answers to all your pool filter cartridge questions. At Pool Depo, we make it simple to keep your water sparkling and safe for everyone to enjoy.