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418 products found
Waterco Micron SM500 20" Side Mount Sand Filter | 8" Neck - 1.5" Connect | 2.12 Sq. Ft. 42 GPM | 220008204NA
Waterco Micron SM500 20" Side Mount Sand Filter | 8" Neck - 1.5" Connect | 2.12 Sq. Ft. 42 GPM | 220008204NA
$527.63
★★★★★ (1)
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Waterco Micron SMD600 24" Commercial Side Mount Deep Bed Sand Filter | 3" Bulkhead Connections 58 PSI | 3.05 Sq. Ft. 30 GPM | 22506004501NA
Waterco Micron SMD600 24" Commercial Side Mount Deep Bed Sand Filter | 3" Bulkhead Connections 58 PSI | 3.05 Sq. Ft. 30 GPM | 22506004501NA
$868.31
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Waterco Micron S500 20" Top Mount Sinking Bead Filter | 1.5" Multiport Valve | 2.12 Sq. Ft. 41 GPM | 2201204B
Waterco Micron S500 20" Top Mount Sinking Bead Filter | 1.5" Multiport Valve | 2.12 Sq. Ft. 41 GPM | 2201204B
$429.24
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Waterco C50 Trimline Bag Filter Housing 87 PSI | Bag Sold Sepatately | 3761050
Waterco C50 Trimline Bag Filter Housing 87 PSI | Bag Sold Sepatately | 3761050
$391.49
★★★☆☆ (1)
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HeatWave Spa Filter Cleaning Brush | NFC6000
HeatWave Spa Filter Cleaning Brush | NFC6000
$12.30
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Waterco Slimline CC25 Residential Point of Entry Cartridge Water Filter | 25 Sq. Ft. 25 GPM | 4555252NA
Waterco Slimline CC25 Residential Point of Entry Cartridge Water Filter | 25 Sq. Ft. 25 GPM | 4555252NA
$82.76
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Waterco Collector Assembly | 15B0227
Waterco Collector Assembly | 15B0227
$201.95
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Waterco Opal Cartridge Element | 225sq. ft. 30 Micron | 701040
Waterco Opal Cartridge Element | 225sq. ft. 30 Micron | 701040
$253.87
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Replacement Filter Cartridge for Waterco Trimline C25 | 62040 PWC25 C-7427 FC-5125
Replacement Filter Cartridge for Waterco Trimline C25 | 62040 PWC25 C-7427 FC-5125
$34.70
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Waterco W300n 14" Micron Deep Bed Sand Filter Only 102 PSI | 4" Neck 1.5" Bulkhead Connection | 22473011NA
Waterco W300n 14" Micron Deep Bed Sand Filter Only 102 PSI | 4" Neck 1.5" Bulkhead Connection | 22473011NA
$312.62
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Waterco Exotuf E500 20" Top Mount Sinking Bead Filter with Multiport Valve | 3 Sq. Ft. 42 GPM | 2260206B
Waterco Exotuf E500 20" Top Mount Sinking Bead Filter with Multiport Valve | 3 Sq. Ft. 42 GPM | 2260206B
$409.60
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Waterco Micron S500 20" Top Mount Fiberglass Sand Filter | 2.12 Sq. Ft. 41 GPM | 2201224NA
Waterco Micron S500 20" Top Mount Fiberglass Sand Filter | 2.12 Sq. Ft. 41 GPM | 2201224NA
$311.27
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Waterco Hydro Air Relief Screen HRV | 15B0074
Waterco Hydro Air Relief Screen HRV | 15B0074
$8.26
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Waterco WD350n 14" Micron Deep Bed Sand Filter Only 102 PSI | 4" Neck 1.5" Bulkhead Connection | 22483571NA
Waterco WD350n 14" Micron Deep Bed Sand Filter Only 102 PSI | 4" Neck 1.5" Bulkhead Connection | 22483571NA
$466.47
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Jandy CL Series Cartridge Pool Filter | 340 Sq Ft | CL340
Jandy CL Series Cartridge Pool Filter | 340 Sq Ft | CL340
$1,256.76
★★★★☆ (8)
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Replacement Filter Cartridge - 25 Sq Ft | C-7427
Replacement Filter Cartridge - 25 Sq Ft | C-7427
$42.07
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Waterco Exotuf E400 16" Clamp Type Top Mount Sand Filter | 2 Sq. Ft. 27 GPM | 2260166NA
Waterco Exotuf E400 16" Clamp Type Top Mount Sand Filter | 2 Sq. Ft. 27 GPM | 2260166NA
$237.00
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Waterco Bulkhead Assembly | 31B9030
Waterco Bulkhead Assembly | 31B9030
$74.68
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Waterway ProClean Plus Above Ground Pool Single Cartridge System | 1.5HP Hi-Flo II Pump 100 Sq. Ft. Filter | 520-6115-6S
Waterway ProClean Plus Above Ground Pool Single Cartridge System | 1.5HP Hi-Flo II Pump 100 Sq. Ft. Filter | 520-6115-6S
$598.80
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Waterco HRV 18" Side Mount Fiberglass Sand Filter | 2.2 Sq. Ft. 43 GPM | 22207188
Waterco HRV 18" Side Mount Fiberglass Sand Filter | 2.2 Sq. Ft. 43 GPM | 22207188
$662.49
★★★★★ (1)
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D.E. Filters
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Pool Filters for Sale Online

The best selection of pool filters to remove unwanted impurities and debris from your pool’s water are at Pool Supply Unlimited. Our sand, cartridge, and diatomaceous earth (D.E.) pool filters from leading pool brands like Pentair give you plenty of options when deciding which pool filter is best for your swimming pool.
 
Pool Supply Unlimited also carries the necessary pool chemicals and pool supplies you need to keep your pool clean and sanitized, whether it’s open for the summer or all year long.

Different Types of Pool Filters

Pool filters pull the water through filtration media to catch and trap any dirt, sediment, and other elements before pushing the clean water back into the pool. The actual materials used to filter out the water and trap dirt and sediment will vary, as will the mechanics of the pool filters themselves.
 
In some cases, your pool type or location will require a specific type of filter, and in other cases, you'll just want to decide on what's best for your needs. For instance, what’s best for a single-family home may not be what’s best for a large commercial pool. To understand your choices when it comes to pool filters, it's good to first get a better understanding of how each filter type works.

Cartridge Filters

Cartridge pool filters work by passing water through a pleated cartridge, collecting unwanted dirt and debris while the newly cleaned water continues through to the pool. Cartridge pool filters can filter down to about 10 microns. Cleaning the internal cartridge is fairly simple, just take it out and rinse it off making sure to properly clean between the pleats before returning to the filter. Cartridge pool filters are recommended for public pools or pools in busy apartment complexes and hotels.

D.E Filters

Diatomaceous earth (D.E.) pool filters use diatomaceous earth to coat filter grids that collect dirt and sediment to give your pool the thorough cleaning it needs. D.E pool filters can filter down to about 5 microns, the lowest micron rating of any style pool filter, making them a great choice for the best water clarity. Like cartridges, the D.E. filter grids inside your D.E. pool filter will eventually need to be replaced.

Sand Filters

Because of their simple, effective, and relatively low maintenance needs, sand pool filters are one of the most popular swimming pool filter options available today. As pool water is routed through a sand-filled pressure vessel, dirt accumulates between sand particles. Sand pool filters are relatively low maintenance with sand only having to be replaced every few years, but do require “back-washing” to clean the filter. Sand pool filters are the least effective filter type, filtering about 20 microns at best.
 
Pool Supply Unlimited has cartridge pool filter and sand pool filter systems for above ground pools in a pool filter and pool pump combination.
 
No matter what your pool and spa filter needs, Pool Supply Unlimited has the best selection of pool and spa filters for you to choose from.

RELATED ARTICLES

Which Pool Filter is Best for My Swimming Pool?

Which Pool Filter is Best for My Swimming Pool?

As you probably know, pool filters are designed to aid in keeping pool water clean by trapping dirt, debris and other such elements. But there are a few different methods to pool filtration - each with their own advantages and shortcomings.

What Replacement Filter Cartridge Do I Need?

What Replacement Filter Cartridge Do I Need?

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 Add D.E. Powder To Your Pool

How To Add D.E. Powder To Your Pool

If you own a D.E. Filter or are planning on investing in one as the water filtration system for your swimming pool you will at some point or another need to add D.E. powder to your pool. This blog post provides a brief overview of what D.E powder is and how it works and a detailed step by step guide for safely adding D.E. powder to your pool.

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ABOUT THE STORE
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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