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There is a reason why Filbur is the leading manufacturer of OEM pool and spa filters. From their state of the art antimicrobial end caps, to the innovative Reemay filter media with break resistant bands, Filbur produces high quality, long lasting products. With over 700 different filter configurations, Filbur is sure to have the size and type of replacement filter you need for your pool or spa.

Filbur has been an industry leader, manufacturing pleated pool and spa cartridges for over two decades. They continue to discover new technology that improves the function and efficiency of all of their products.

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Filbur Pool and Spa Filters full product list:


Filbur FC-0640 Replacement For Unicel C-4325
(UNICEL C-4325 R)

The UNICEL C-4325 R is the compatible replacement for the following pool and spa filters: Filbur FC-0640 Aladdin 12511 The Unicel C-4325 Comp. Pool & Spa Filter Cartridge has an outer diameter of 4 15/16 inches, and a length of 11 7/8 inches.


Out of stock
Filbur FC-0640 Replacement For Unicel C-4325
Our Price: $18.99
Retail: $22.99
You Save 17%!

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Filbur FC-0645 Replacement for UNICEL C-4620 Pool & Spa Filter
(UNICEL C-4620 R)

The Filbur FC-0645 has an outer diameter of 4 15/16 inches, and a length of 11 7/8 inches.


In Stock! Ships in 27 to 28 business days.
Filbur FC-0645 Replacement for UNICEL C-4620 Pool & Spa Filter
Our Price: $27.85
Retail: $32.99
You Save 16%!

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Filbur FC-3730 Replacement for Unicel C-4611, F-112
(Unicel C-4611 R)

The Filbur FC-3730 is the replacement filter for the Unicel C-4611 R. The Unicel C-4611 Comp. Coleco F-112 Spa Filter has an outer diameter of 4 3/4 inches, with a length of 11 inches.


In Stock! Ships in 1 to 2 business days.
Filbur FC-3730 Replacement for Unicel C-4611, F-112
Our Price: $8.25
Retail: $9.99
You Save 17%!

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APC APCC7035 Replacement For Unicel C-4618, D-18
(Unicel C-4618 R)

The Unicel C-4618 Comp. Coleco DR-18 Pool & Spa Filter is a replacement pool filter cartridge built with pleated media and 13 square feet of media area to improve pool/spa water quality. This compatible Unicel pool filter, also known as the Filbur F


In Stock! Ships in 1 to 2 business days.
APC APCC7035 Replacement For Unicel C-4618, D-18
Our Price: $17.99
Retail: $21.99
You Save 18%!

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Filbur FC-3742 Replacement For Unicel C-4306
(Unicel C-4306 R)

The Filbur FC-3742 is the replacement filter for the Unicel C-4306 R.


Out of stock
Filbur FC-3742 Replacement For Unicel C-4306
Our Price: $11.99
Retail: $14.99
You Save 20%!

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Filbur FC-3743 Replacement For Unicel C-4309
(Unicel C-4309 R)

The Unicel C-4309 Comp. General Foam 10 Spa Filter is a replacement pool filter cartridge built with pleated media and 10 square feet of media area to improve pool/spa water quality. This compatible Unicel pool filter, also known as the Filbur FC-37


Out of stock
Filbur FC-3743 Replacement For Unicel C-4309
Our Price: $13.99
Retail: $16.99
You Save 18%!

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Filbur FC-3744 Replacement For Unicel C-4307
(Unicel C-4307 R)

The Filbur FC-3744 is the replacement filter for the Unicel C-4307 R.


In Stock! Ships in 1 to 2 business days.
Filbur FC-3744 Replacement For Unicel C-4307
Our Price: $11.99
Retail: $14.99
You Save 20%!

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Filbur FC-3745 Replacement for Unicel C-4601 Pool Filter
(Unicel C-4601 R)

The Unicel C-4601 Comp. Pool Water Filter Cartridge is a replacement pool filter cartridge with 16 sq. ft. of media area that traps contaminants in pool & spa water in its sharp pleat folds. This compatible Unicel pool filter, also known as the Filb


In Stock! Ships in 1 to 2 business days.
Filbur FC-3745 Replacement for Unicel C-4601 Pool Filter
Our Price: $15.99
Retail: $18.99
You Save 16%!

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Filbur FC-3758 Replacement for Unicel C-4604, C-22 Pool Filter
(Unicel C-4604 R)

The Filbur FC-3758 Pool and Spa Filter is a replacement water filter cartridge that improves the water quality in swimming pools and spas.


In Stock! Ships in 1 to 2 business days.
Filbur FC-3758 Replacement for Unicel C-4604, C-22 Pool Filter
Our Price: $9.99
Retail: $11.99
You Save 17%!

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Filbur FC-3850 Replacement for Unicel C-4600, A2300 Pool Filter
(Unicel C-4600 R)

The Filbur FC-3850 Pool and Spa Filter is a replacement water filter cartridge that improves the water quality in swimming pools and spas.


Out of stock
Filbur FC-3850 Replacement for Unicel C-4600, A2300 Pool Filter
Our Price: $7.99
Retail: $9.99
You Save 20%!

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Filbur FC-1215 Replacement For Unicel C-4320
(Unicel C-4320 R)

The Unicel C-4320 Comp. Pool & Spa Water Filter delivers exceptional quality water in swimming pools and water through pleated polyester media and 20 square feet of media area. This pool filter cartridge measures 4 5/8" x 11 7/8" x with 2 1/8" Open


In Stock! Ships in 7 to 8 business days.
Filbur FC-1215 Replacement For Unicel C-4320
Our Price: $21.99
Retail: $39.99
You Save 45%!

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Filbur FC-1437 Replacement For Unicel C-5635, CF-37
(Unicel C-5635 R)

The Unicel C-5635 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters: Jacuzzi CFR 37 Filbur FC-1437 The Unicel C-5635 Comp. Spa Filter - Jacuzzi CFR-37 has an outer diameter of 5 in


In Stock! Ships in 5 to 6 business days.
Filbur FC-1437 Replacement For Unicel C-5635, CF-37
Our Price: $35.99
Retail: $42.99
You Save 16%!

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Filbur FC-1611 Replacement For Unicel C-4339
(Unicel C-4339 R)

The Filbur FC-1611 is the correct replacement filter for the Unicel C-4339 and for the following filters:


Out of stock
Filbur FC-1611 Replacement For Unicel C-4339
Our Price: $13.66
Retail: $16.99
You Save 20%!

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Filbur FC-1612 Replacement For Unicel C-4332
(Unicel C-4332 R)

The Filbur FC-1612 is the correct replacement for the Unicel C-4332 R for the following filters:


In Stock! Ships in 8 to 9 business days.
Filbur FC-1612 Replacement For Unicel C-4332
Our Price: $18.66
Retail: $21.99
You Save 15%!

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Filbur FC-2315 Replacement For Unicel C-2606
(Unicel C-2606 R)

The Filbur FC-2315 is the correct replacement for the Unicel C-2606 R and for the following pool and spa filter cartridges:


In Stock! Ships in 1 to 2 business days.
Filbur FC-2315 Replacement For Unicel C-2606
Our Price: $13.99
Retail: $16.99
You Save 18%!

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Filbur FC-2330 Replacement For Unicel C-2608
(Unicel C-2608 R)

The Filbur FC-2330 is the correct replacement for the Unicel C-2608 R and for the following pool and spa filter cartridges:


In Stock! Ships in 4 to 5 business days.
Filbur FC-2330 Replacement For Unicel C-2608
Our Price: $11.95
Retail: $14.99
You Save 20%!

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Filbur FC-2372 Replacement For Unicel C-4321
(Unicel C-4321 R)

The Unicel C-4321 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters: Pentair/Rainbow 17-2653 Filbur FC-2372 The Unicel C-4321 Comp. Replacement Pool Filter has an outer diameter of


In Stock! Ships in 1 to 2 business days.
Filbur FC-2372 Replacement For Unicel C-4321
Our Price: $16.99
Retail: $19.99
You Save 15%!

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Filbur FC-2375M Replacement Unicel C-4326RA
(Unicel C-4326RA R)

The Filbur FC-2375M is the replacement filter for the Unicel C-4326RA R.


In Stock! Ships in 1 to 2 business days.
Filbur FC-2375M Replacement Unicel C-4326RA
Our Price: $23.65
Retail: $27.99
You Save 16%!

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Filbur FC-2380 Replacement for Unicel C-4637
(Unicel C-4637 R)

The Filbur FC-2380 has an outer diameter of 4 15/16 inches, with a length of 13 5/16 inches.


In Stock! Ships in 6 to 7 business days.
Filbur FC-2380 Replacement for Unicel C-4637
Our Price: $32.99
Retail: $39.99
You Save 18%!

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Filbur FC-2385M Replacement For Unicel C-4335RA
(Unicel C-4335RA R)

The Unicel C-4335RA R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters: PRB35-IN-M Filbur FC-2385M The Unicel C-4335RA Comp. Replacement Pool Filter has an outer diameter of


In Stock! Ships in 4 to 5 business days.
Filbur FC-2385M Replacement For Unicel C-4335RA
Our Price: $21.99
Retail: $25.99
You Save 15%!

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Filbur FC-2387 Replacement For Unicel C-4405
(Unicel C-4405 R)

The Filbur FC-2387 is the replacement filter for the Unicel C-4405 R.


In Stock! Ships in 2 to 3 business days.
Filbur FC-2387 Replacement For Unicel C-4405
Our Price: $47.99
Retail: $56.99
You Save 16%!

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Filbur FC-2397 Replacement for Unicel C-4999 Pool & Spa Filter
(Unicel C-4999 R)

The Filbur FC-2397 has an outer diameter of 4 15/16 inches, with a length of 26 11/16 inches.


In Stock! Ships in 3 to 4 business days.
Filbur FC-2397 Replacement for Unicel C-4999 Pool & Spa Filter
Our Price: $45.99
Retail: $54.99
You Save 16%!

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Filbur FC-2510 Replacement for Unicel C-4610 Pool & Spa Filter
(Unicel C-4610 R)

The Unicel C-4610 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters: Sta-Rite TX-15 Filbur FC-2510 The Unicel C-4610 Comp. Pool & Spa Water Filter has an outer diameter of 4 1/2 in


Out of stock
Filbur FC-2510 Replacement for Unicel C-4610 Pool & Spa Filter
Our Price: $18.65
Retail: $21.99
You Save 15%!

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Filbur FC-2625 Replacement for Unicel C-4430 Pool & Spa Filter
(Unicel C-4430 R)

The Filbur FC-2625 is the replacement filter for the Unicel C-4430 R.


In Stock! Ships in 8 to 9 business days.
Filbur FC-2625 Replacement for Unicel C-4430 Pool & Spa Filter
Our Price: $25.32
Retail: $29.99
You Save 16%!

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Filbur FC-2660 Replacement For Unicel C-4345
(Unicel C-4345 R)

The Unicel C-4345 Comp. Pool Filter Cartridge is a pool filter cartridge replacement constructed with 45 sq. ft. of pleated Reemay filter media for the reduction of contaminants in swimming pool and spa water. This compatible Unicel spa filter, also


In Stock! Ships in 2 to 3 business days.
Filbur FC-2660 Replacement For Unicel C-4345
Our Price: $24.99
Retail: $29.99
You Save 17%!

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