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Top > Filter Cartridges > Manufacturers > Clearwater
Clarathon: Worlds finest hot tub spa filters
Clarathon Premium Ultra Filters

Hot Tub Spa & Pool Filters
Save 50% or More - Free Shipping

  • Clarathon: You cannot buy better quality filters
  • World's largest stock of Long-Life Cartridges
  • Replacements for Unicel, Pleatco & Filbur
  • Save even more with Quantity Discounts!

Filter Assistance   Filter Measuring Tips

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Clearwater
 
Clarathon
Ultra Filter  		 Width Length Bottom Top Click
to Order
FC23864 15/164 5/82 1/8
filter bottom - hole		2 1/8
filter top - hole		Buy Now
 UnicelC-4401
 PleatcoPRB 17.5SF
Price
Buy 1 at $25.95
Buy 2-3 at $24.95
Buy 4 or more at $24.50
Other part #'s817-3510 
Twin Pack Whats This?
Notes: For spas with stacked filters. Pull stick on second filter. Sold in sets of 2 (1-pack = 2 filters)
FC23874 15/166 5/82 1/8
filter bottom - hole		2 1/8
filter top - hole		Buy Now
 UnicelC-4405
 PleatcoPRB 25SF
Price
Buy 1 at $30.95
Buy 2-3 at $29.95
Buy 4 or more at $29.50
Other part #'s817-5010 
Twin Pack Whats This?
Notes: For spas with stacked filters. Pull stick on second filter. Sold in sets of 2 (1-pack = 2 filters)
FC23854 15/169 1/42 1/8
filter bottom - hole		2 1/8
filter top - hole		Buy Now
 UnicelC-4335
 PleatcoPRB 35IN 3
Price
Buy 1 at $19.95
Buy 2-3 at $19.50
Buy 4 or more at $18.95
Other part #'s817-3501  
Notes: 35 SF
FC13205 11/1610 3/82 1/8
filter bottom - hole
filter top - string-pull		Buy Now
 UnicelC-5300
 PleatcoPJW 50
Price
Buy 1 at $26.95
Buy 2-3 at $25.95
Buy 4 or more at $25.50
Other part #'s  
Notes: 50 SF
FC035968 1/4
filter bottom - threaded, SAE
filter top - handle		Buy Now
 Unicel6CH-940
 PleatcoPWW 50
Price
Buy 1 at $24.95
Buy 2-3 at $23.95
Buy 4 or more at $23.50
Other part #'s817-0050
Screw-In Whats This?
 
Notes: SAE Coarse Thread
  
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ThermoFloat
Spa Blankets
Reduces Evaporation
Saves Energy

 
 
REPLACEMENT PARTS
ILLUSTRATED CATALOG
Huge selection of spa replacement parts

For all makes & models. Common & hard to find Spa Parts
Spas Packs & Controls

Spa Packs

Premium Replacements
Discount Pricing
Spa Pumps   Blowers for hot tubs
Spa Pumps  Blowers
 
ZorbO
ZorbO Oil Scum Absorber

Advanced molecular oil absorption technology for naturally cleaner spas.

ZorbO Scum Absorber
 
 
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