Pool Filter Cartridges | Replacement Pool Filter Cartridges

Pool filter cartridges capture dirt, debris, and fine particles as water circulates through the filtration system. Replacing cartridges regularly helps maintain proper filtration and clear water. Browse our pool filter cartridges to keep your pool filter operating efficiently.

Looking for DE Filter Grids Instead?
If your filter uses DE powder instead of a cartridge, you may need replacement DE filter grids. Browse our DE filter grid collection to find the right grids for your pool filter.

Crystal-Clear Water Starts with Quality Filter Cartridges

A clean, safe, and inviting pool depends on effective filtration — and at the core of many filtration systems are pool filter cartridges. Unlike sand or D.E. filters, cartridge filters use pleated material to capture dirt, oils, pollen, and debris as water passes through. They deliver excellent water clarity, require less backwashing, and are easy to maintain with regular rinsing and cleaning.

At Benchmark Pool Supply, we offer a wide selection of pool filter cartridges from trusted brands like Unicel and Pleatco. Whether you need a 4-pack set like the Unicel C-7472-4 Cartridge Filter Set for CCP520, a replacement cartridge like the Unicel C-8419 Pool Filter Cartridge, a spa cartridge like the Unicel 5CH-512 Spa Filter Cartridge, or a full system replacement option, our collection provides durable, high-performance filters for pools and spas.

Pair replacement cartridges with Poolife Filter Cleaner, GLB Filter Rinse, pool filters, and related filter parts for complete water clarity.

Why Filter Cartridges Matter

Superior Water Clarity – Quality cartridges like the Unicel C-7471-4 105 Sq Ft Cartridge Filter 4-Pack help capture fine dirt, pollen, oils, and debris.
Easy Maintenance – Cartridge filters can be removed, rinsed, soaked with Poolife Filter Cleaner, and reinstalled without messy backwashing.
Energy Efficient – Cartridge systems operate at lower pressure when properly sized and maintained.
Environmentally Friendly – Cartridge filters conserve water compared to frequent sand or D.E. backwashing.
Cost-Effective – Long-lasting replacement cartridges can be cleaned, reused, and replaced as needed instead of replacing the full filter system.

Types of Filter Cartridges

1. Standard Pool Filter Cartridges

Standard pool filter cartridges are made with durable pleated media and come in many sizes for residential and commercial pools. Popular options include the Unicel C-8419 Pool Filter Cartridge, Unicel C-9419 200 Sq Ft Pool Filter Cartridge, Pleatco PA175 Pool Filter Cartridge, and Pleatco PA50 Pool Filter Cartridge.

2. Spa Filter Cartridges

Spa filter cartridges are compact, precision-fit filters designed for hot tubs and spas where oils, lotions, and higher bather loads are common. Product links to include here are the Unicel 5CH-512 Spa Filter Cartridge, Unicel 5CH-352 Spa Filter Cartridge, Unicel 6CH-960 Spa Filter Cartridge, and Oreq Clear Spa Cartridge Cleaner.

3. High-Capacity Cartridges

High-capacity cartridge sets provide extra surface area for larger pools, high debris loads, and longer filter cycles between cleanings. Strong internal links include the Unicel C-7472-4 Cartridge Filter Set for CCP520, Unicel C-7468 Pool Filter Cartridge for Jandy CL460, Unicel C-7488 Filter Cartridge 4-Pack for C4025/C4030, and Pleatco PCC80-PAK4 Pool Filter Cartridge 4-Pack.

4. OEM Replacement Cartridges

OEM and model-specific replacement cartridges are designed for exact fit and performance in specific filter systems. Add links like the Pentair System 3 S7M120 Filter Cartridge Kit, Pentair 170147 System 3 450 Sq Ft Inner Cartridge, Unicel C-8465 Replacement for Pentair Clean & Clear 320, and Cartridge Hayward 425 Set.

5. Aftermarket Cartridges

Aftermarket cartridges from Unicel and Pleatco can be a cost-effective alternative to OEM replacements while still delivering dependable fit and filtration. Options like the Unicel C-4607 Cartridge Filter Type A & C, Unicel C-8600 Hayward Replacement, Model 420 Pleatco Ultra Replacement Cartridges, and Super Pro FC-6430 Pool Filter Cartridge help cover a wide range of pool and spa systems.

Signs You Need a New Filter Cartridge

Water stays cloudy even after proper chemical balancing and filter cleaning.
Pressure gauge reads high despite cleaning the cartridge.
Visible cracks, tears, broken bands, or collapsed pleats on the cartridge.
Cartridge feels soft, mushy, brittle, or misshapen when handled.
Pool requires more frequent chemical adjustments because filtration is no longer keeping up.
A 4-cartridge system, such as a Clean & Clear Plus, Jandy CL, or Hayward SwimClear system, has uneven wear across the set.

If your cartridge is damaged or no longer cleaning properly, replace it with the correct model, such as the Unicel C-7471-4, Unicel C-7472-4, Unicel C-8419, or Pleatco PA175.

Maintenance Tips for Filter Cartridges

Rinse cartridges every 2–4 weeks with a garden hose.
Soak cartridges with Poolife Filter Cleaner, GLB Filter Rinse, or Applied Biochemists Filter Blaster to remove oils, scale, and buildup.
Rotate between two cartridge sets when possible to extend cartridge life.
Replace cartridges every 1–2 years depending on usage, water conditions, and cleaning frequency.
Monitor filter pressure and clean when it rises 8–10 PSI above clean starting pressure.
Inspect related filter parts, manifolds, air bleeders, and O-rings during every cartridge cleaning.

Why Buy Filter Cartridges from Benchmark Pool Supply?

Top Brands – Featuring Unicel, Pleatco, Pentair, Hayward, Jandy, and other trusted cartridge filter options.
Product-Specific Selection – Shop popular replacements like the Unicel C-7472-4 CCP520 cartridge set, Unicel C-7468 Jandy CL460 cartridge set, and Pentair System 3 S7M120 cartridge kit.
Wide Selection – Sizes and models for pool filters, spa filters, high-capacity cartridge systems, and single-cartridge housings.
Expert Support – Our team helps confirm the right cartridge by model number, length, diameter, end cap style, and square footage.
Fast Shipping – Get replacement cartridges quickly for uninterrupted swimming.

Related Products

Keep your filtration system performing at its best with product-specific options like the Unicel C-7472-4 CCP520 Cartridge Filter Set, Unicel C-7471-4 105 Sq Ft Cartridge Filter 4-Pack, Unicel C-7468 Jandy CL460 Cartridge Set, Pentair System 3 S7M120 Filter Cartridge Kit, Poolife Filter Cleaner, and related filter parts. For complete systems, explore pool filters and compatible replacement cartridges.

✅ FAQ – Filter Cartridges

Q: How often should I replace my filter cartridge?
A: On average, every 12–24 months. However, replacement may be needed sooner in high-use or hard-water areas.

Q: Can filter cartridges be cleaned and reused?
A: Yes. Pool filter cartridges can be cleaned and reused when the pleats and bands are still in good condition. Rinse regularly and use products like Poolife Filter Cleaner, GLB Filter Rinse, or Applied Biochemists Filter Blaster to remove oils, scale, and buildup.

Q: What’s the difference between Unicel and Pleatco cartridges?
A: Both brands offer high-quality alternatives to OEM filters. Unicel is known for its durable construction, while Pleatco emphasizes advanced media and flow technology.

Q: How do I know which cartridge fits my system?
A: To find the correct pool filter cartridge, check the model number on your filter housing, measure the cartridge length and diameter, and match the end cap style. If you have a Clean & Clear Plus, Jandy CL, Hayward SwimClear, Sta-Rite System 3, or spa filter system, compare your measurements to product options like the Unicel C-7471-4, Unicel C-7472-4, or Pentair System 3 S7M120 Kit.

Q: Can spa and pool cartridges be interchanged?
A: No. Spa cartridges are designed for compact systems and higher bather loads, while pool cartridges are built for larger circulation volumes.

Q: Are aftermarket cartridges as good as OEM?
A: Yes. Unicel and Pleatco are industry-trusted aftermarket brands known for excellent performance and fit.