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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

Nordic Hot Tubs
 
FC0170
ThreadedPrice: $24.95
Diameter: 4-15/16" Whats This?Info
Length: 9-1/4" Whats This?Info
Top: Handle
Bottom: 1-1/2" Female Thread Whats This?Info
Surface Area: 35 SF Whats This?Info
Premium replacement for:
Unicel: 4CH-935 Whats This?Info
Pleatco: PWW35L Whats This?Info
Filbur: FC-0170 Whats This?Info
Other: 817-4035
Quantity Discounts:
Buy 2-3: $23.63 ea.
Buy 4-5: $22.38 ea.
Buy 6 +: $21.38 ea.

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Notes: Internal coarse female threads (1-7/8" I.D.) Also available in Antimicrobial version: FC0170M (below).

 
FC0170M
Antimicrobial Threaded Whats This?InfoPrice: $28.95
Diameter: 4-15/16" Whats This?Info
Length: 9-1/4" Whats This?Info
Top: Handle
Bottom: 1-1/2" Female Thread Whats This?Info
Surface Area: 35 SF Whats This?Info
Premium replacement for:
Unicel: 4CH-935RA Whats This?Info
Pleatco: PWW35L-M Whats This?Info
Filbur: FC-0170M Whats This?Info
Other: 817-4035
Quantity Discounts:
Buy 2-3: $27.42 ea.
Buy 4-5: $25.97 ea.
Buy 6 +: $24.81 ea.

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Notes: Internal coarse female threads (1-7/8" I.D.)

 
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.

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FC1610
Price: $15.95
Diameter: 4-15/16" Whats This?Info
Length: 14-7/8" Whats This?Info
Top: 2-1/8" Open Whats This?Info
Bottom: 2-1/8" Open Whats This?Info
Surface Area: 27.5 SF Whats This?Info
Premium replacement for:
Unicel: C-4301 Whats This?Info
Pleatco: PMT27.5 Whats This?Info
Filbur: FC-1610 Whats This?Info
Aladdin: 12801
Quantity Discounts:
Buy 2-3: $15.10 ea.
Buy 4-5: $14.31 ea.
Buy 6 +: $13.67 ea.

Buy Now

 
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