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Clarathon Premium Ultra Filters
Clarathon: Worlds finest hot tub spa filters
Clarathon Premium Ultra Filters
Hot Tub Spa & Pool Filters
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  • Clarathon: You cannot buy better quality filters
  • World's largest stock of Long-Life Cartridges
  • Replacements for Unicel, Pleatco, Filbur, Aladdin
  • $2 OFF Filter Cleaner with purchase! Whats This?Info
  • Save even more with Quantity Discounts!
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Filters Listed in Ascending Order by Diameter, then Length

Great Lakes Spa
 
 
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FC2387
Price: $24.95
Diameter: 4-15/16" Whats This?Info
Length: 6 5/8" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 50 SF Whats This?Info
Premium replacement for:
Unicel: C-4405 Whats This?Info
Pleatco: PRB25SF-PAIR Whats This?Info
Filbur: FC-2387 Whats This?Info
Aladdin: 12504
Other: 817-5010, DSF 50, FL1004
Quantity Discounts:
Buy 2-3: $23.63 ea.
Buy 4-5: $22.38 ea.
Buy 6 +: $21.38 ea.

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Notes: For spas with stacked filters. Sold in sets of 2 (1 ea. = 2 filters)

 
FC2385
Price: $18.95
Diameter: 4-15/16" Whats This?Info
Length: 9-1/4" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 35 SF Whats This?Info
Premium replacement for:
Unicel: C-4335 Whats This?Info
Pleatco: PRB35-IN Whats This?Info
Filbur: FC-2385 Whats This?Info
Aladdin: 13501
Other: 817-3501, FL1008
Quantity Discounts:
Buy 2-3: $17.95 ea.
Buy 4-5: $17.00 ea.
Buy 6 +: $16.24 ea.

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Notes: Also available in Antimicrobial version: FC2385M (below).

 
FC2385M
Antimicrobial Whats This?InfoPrice: $24.95
Diameter: 4-15/16" Whats This?Info
Length: 9-1/4" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 35 SF Whats This?Info
Premium replacement for:
Pleatco: PRB35-IN-M Whats This?Info
Filbur: FC-2385M Whats This?Info
Quantity Discounts:
Buy 2-3: $23.63 ea.
Buy 4-5: $22.38 ea.
Buy 6 +: $21.38 ea.

Buy Now

 
FC2375
Price: $14.95
Diameter: 4-15/16" Whats This?Info
Length: 13-5/16" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 25 SF Whats This?Info
Premium replacement for:
Unicel: C-4326 Whats This?Info
Pleatco: PRB25-IN Whats This?Info
Filbur: FC-2375 Whats This?Info
Other: 817-2500, 33521, FL1001, 17-2327
Quantity Discounts:
Buy 2-3: $14.16 ea.
Buy 4-5: $13.41 ea.
Buy 6 +: $12.81 ea.

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Notes: Also available in Antimicrobial version: FC2375M (below).

 
FC2375M
Antimicrobial Whats This?InfoPrice: $18.95
Diameter: 4-15/16" Whats This?Info
Length: 13-5/16" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 25 SF Whats This?Info
Premium replacement for:
Pleatco: PRB25-IN-M Whats This?Info
Filbur: FC-2375M Whats This?Info
Quantity Discounts:
Buy 2-3: $17.95 ea.
Buy 4-5: $17.00 ea.
Buy 6 +: $16.24 ea.

Buy Now

 
FC2390
Price: $21.95
Diameter: 4-15/16" Whats This?Info
Length: 13-5/16" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 50 SF Whats This?Info
Premium replacement for:
Unicel: C-4950 Whats This?Info
Pleatco: PRB50-IN Whats This?Info
Filbur: FC-2390 Whats This?Info
Aladdin: 15002
Other: 187381, 6540-471, 817-5000, 373045, R173434
Quantity Discounts:
Buy 2-3: $20.79 ea.
Buy 4-5: $19.69 ea.
Buy 6 +: $18.81 ea.

Buy Now
Notes: Also available in Antimicrobial version: FC2390M (below).

 
FC2390M
Antimicrobial Whats This?InfoPrice: $26.95
Diameter: 4-15/16" Whats This?Info
Length: 13-5/16" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 50 SF Whats This?Info
Premium replacement for:
Unicel: C-4950RA Whats This?Info
Pleatco: PRB50-IN-M Whats This?Info
Filbur: FC-2390M Whats This?Info
Quantity Discounts:
Buy 2-3: $25.52 ea.
Buy 4-5: $24.17 ea.
Buy 6 +: $23.10 ea.

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FC0359
ThreadedPrice: $20.95
Diameter: 6" Whats This?Info
Length: 8-1/4" Whats This?Info
Top: Handle
Bottom: 1-1/2" Coarse Thread Whats This?Info
Surface Area: 50 SF Whats This?Info
Premium replacement for:
Unicel: 6CH-940 Whats This?Info
Pleatco: PWW50P3 Whats This?Info
Filbur: FC-0359 Whats This?Info
Aladdin: 14510
Other: 817-0050, X265010, FL1007, APCC7144
Quantity Discounts:
Buy 2-3: $19.84 ea.
Buy 4-5: $18.79 ea.
Buy 6 +: $17.95 ea.

Buy Now
Notes: Also available in Antimicrobial version: FC0359M (below).

 
FC0359M
Antimicrobial Threaded Whats This?InfoPrice: $25.95
Diameter: 6" Whats This?Info
Length: 8-1/4" Whats This?Info
Top: Handle
Bottom: 1-1/2" Coarse Thread Whats This?Info
Surface Area: 50 SF Whats This?Info
Premium replacement for:
Unicel: 6CH-940RA Whats This?Info
Pleatco: PWW50P3-M Whats This?Info
Filbur: FC-0359M Whats This?Info
Other: X265010
Quantity Discounts:
Buy 2-3: $24.57 ea.
Buy 4-5: $23.28 ea.
Buy 6 +: $22.24 ea.

Buy Now

 
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