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143 products found
Replacement Cartridges for Pentair Rainbow Lifeguard CL 9 | 17-2006 FC-2310 C-2604 XLS-207 10401 PC-2310
Replacement Cartridges for Pentair Rainbow Lifeguard CL 9 | 17-2006 FC-2310 C-2604 XLS-207 10401 PC-2310
$33.10
★★★★★ (4)
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Aladdin ECO-Line Replacement Cartridge for Hayward CX900RE | 19002ECO PC-1292 PA90
Aladdin ECO-Line Replacement Cartridge for Hayward CX900RE | 19002ECO PC-1292 PA90
$76.06
★★★★★ (4)
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Replacement Cartridge for Hot Springs Spas 30 sq. ft. | XLS-602 PC-3960
Replacement Cartridge for Hot Springs Spas 30 sq. ft. | XLS-602 PC-3960
$30.92
★★★★★ (4)
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Aladdin ECO-Line Replacement Cartridge for Jacuzzi CFR/CFT 50 | 15015ECO PC-1460 PJ50
Aladdin ECO-Line Replacement Cartridge for Jacuzzi CFR/CFT 50 | 15015ECO PC-1460 PJ50
$147.69
★★★★★ (4)
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Aladdin ECO-Line Replacement Cartridge for Coleco F-120DR-7 Two Pack | 10522ECO PC-3710 PC7-120
Aladdin ECO-Line Replacement Cartridge for Coleco F-120DR-7 Two Pack | 10522ECO PC-3710 PC7-120
$33.62
★★★★★ (4)
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Replacement Cartridges for Rainbow DSF-35 Set of 2 | 17-2606 817-3510 FC-2386 C-4401 XLS-404 11802 PC-2386 PRB17.5SF-JH-PAIR
Replacement Cartridges for Rainbow DSF-35 Set of 2 | 17-2606 817-3510 FC-2386 C-4401 XLS-404 11802 PC-2386 PRB17.5SF-JH-PAIR
$95.36
★★★★★ (4)
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Aladdin ECO-Line Replacement Cartridge for Sta-Rite PXC-75 | 19002ECO PC-1292 PA90
Aladdin ECO-Line Replacement Cartridge for Sta-Rite PXC-75 | 19002ECO PC-1292 PA90
$93.17
★★★★★ (4)
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Replacement Filter Cartridge Element for Rainbow 50 | XLS-408 FC-2390 PC-2390 PRB50-IN
Replacement Filter Cartridge Element for Rainbow 50 | XLS-408 FC-2390 PC-2390 PRB50-IN
$30.83
★★★★★ (4)
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Replacement Cartridge for Hayward FullFlo C850 85 Sq Ft | CX850RE FC-1298 C-9485 XLS-905 18503 PC-1298 PA85
Replacement Cartridge for Hayward FullFlo C850 85 Sq Ft | CX850RE FC-1298 C-9485 XLS-905 18503 PC-1298 PA85
$95.42
★★★★★ (4)
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Replacement Cartridges for Pentair Rainbow 8 | 17 Required | 17-2055 FC-2308 C-2308 10801 PC-2308
Replacement Cartridges for Pentair Rainbow 8 | 17 Required | 17-2055 FC-2308 C-2308 10801 PC-2308
$11.73
★★★★★ (4)
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Replacement Cartridge for Tiger River Spas | XLS-810 PC-3960
Replacement Cartridge for Tiger River Spas | XLS-810 PC-3960
$43.34
★★★★★ (4)
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Aladdin ECO-Line Replacement Cartridge for Intex | 10522ECO PC-3710 PC7-120
Aladdin ECO-Line Replacement Cartridge for Intex | 10522ECO PC-3710 PC7-120
$9.88
★★★★★ (4)
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Replacement Filter Cartridge Element for Threaded Spa Cartridge 24 | XLS-434
Replacement Filter Cartridge Element for Threaded Spa Cartridge 24 | XLS-434
$24.68
★★★★★ (4)
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Replacement Filter Cartridge Element for Rainbow 25 | XLS-407
Replacement Filter Cartridge Element for Rainbow 25 | XLS-407
$25.26
★★★★★ (4)
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Replacement Cartridge for Caldera Spas 50 | XLS-7022
Replacement Cartridge for Caldera Spas 50 | XLS-7022
$39.13
★★★★★ (4)
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Aladdin WorldPool Cartridge Filter Element for Intex A & C | C-4607 FC-3710 10522
Aladdin WorldPool Cartridge Filter Element for Intex A & C | C-4607 FC-3710 10522
$17.51
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Aladdin ECO-Line Replacement Cartridge for Intex B filter | 11522ECO PC-3752 PC7-120
Aladdin ECO-Line Replacement Cartridge for Intex B filter | 11522ECO PC-3752 PC7-120
$23.31
★★★★★ (4)
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Replacement Cartridge for Caldera Spas 75 | XLS-7027 PC-3085
Replacement Cartridge for Caldera Spas 75 | XLS-7027 PC-3085
$45.14
★★★★★ (4)
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Aladdin ECO-Line Replacement Cartridge for Waterway Pro Clean 150 | 25013ECO PC-1287 PWWCT150
Aladdin ECO-Line Replacement Cartridge for Waterway Pro Clean 150 | 25013ECO PC-1287 PWWCT150
$333.44
★★★★★ (4)
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Aladdin ECO-Line Replacement Cartridge for Jacuzzi CFR/CFT 75 | 17514ECO PC-1480 PJ75
Aladdin ECO-Line Replacement Cartridge for Jacuzzi CFR/CFT 75 | 17514ECO PC-1480 PJ75
$166.47
★★★★★ (4)
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Pentair Pool Filter Cartridges
Sta-Rite Filter Cartridges
Hayward Pool Filter Cartridges
Jandy Pool Filter Cartridges
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Spa Filter Cartridges
Filter Cleaning Accessories

Pool Filter Cartridge Replacements

When experienced pool owners need the highest quality pool filter cartridge replacements, they turn to Pool Supply Unlimited. We make it easy to find the right pool cartridge filter for your system with our cartridge finder tool, and offer an impressive selection of cartridge filters and D.E. filter grid replacements that keep your water clean while saving you money. Browse our entire collection of pool supplies today for the best products to keep pool running like new for years to come.

When & How to Clean Your Pool Cartridge 

Pool filter cartridges should be cleaned on average, every six months, or when your filter pressure gauge has increased about 8 to 12 PSI above the recommended starting pressure of your pool filter.
 
To clean your pool cartridge filter, you’ll want to first turn off the filtration system and remove your pool cartridge filter. Remove any large dirt or debris, then clean the pool cartridge filter with the necessary filter cleaning accessories, checking for tears, cracks or damage each time.
 
After you’ve successfully cleaned your pool cartridge filter, allow it to fully dry before inserting it back into the filter tank. If waiting for your filter to dry isn’t an option, consider keeping a pool cartridge filter replacement on hand, this way you’ll always have a clean, dry cartridge to use right away. 

When to Replace Your Pool Cartridge Filter

On average, your pool cartridge filter should last you 3-5 years, depending on the demand placed on it. A damaged filter can affect the overall performance of your filter and subsequently how clean your pool is. Here are some telltale signs that it may be time to replace your pool cartridge filter.
 
If your pool cartridge filter is worn or damaged (broken end caps, fraying pleats, or degrading material) we recommend replacing it. If the cartridge has stains that do not come out with cleaning, it means your filter is saturated with oils and should be replaced.
 
Shop Pool Supply Unlimited today for the quality pool filter cartridge replacements you need at prices you’ll love!
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What Replacement Filter Cartridge Do I Need?

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Not sure what model you need to replace that dirty cartridge in your filter? Here are some tips to take away the confusion and get the problem solved.

How to Clean Your Pool Filter

How to Clean Your Pool Filter

If your pump is the heart of your pool or spa the filter is its kidneys. Daily, your filter removes dirt, oil, organic and inorganic substances. Having clean, healthy water is dependent on your filter operating at its peak performance and that is with a clean filter.

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Pool Supply Unlimited is an e-commerce company that loves water. We love to pump it, filter it, heat it, chlorinate it, light it up and stare at it while we're barbequing a fat, juicy steak. There are real pool professionals working here. Our guys have seen thousands of pools in their careers, no exaggeration. We are based in San Antonio, TX and can land most products to your door (within the 48 contiguous states) in less than a week.
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