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Spa Filter - 2 x C4401 Replacement Spa Filter 35 sq/ft


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Item Description


2 x Guardian Spa Filter - C-4401 - Replacement Filters 35 sq/ ft


C4401 Replacement Filter 35 sq ft


Guardian Pool Filter Replaces Unicel C-4401, Pleatco PRB17.5SF-JH-PAIR, Filbur FC-2386 Filter Cartridge for Swimming Pool and Spa


Keep your water sparkling clean with top of the line pool/hot tub filters. This cloth filter traps micro particles ensuring sparkling clean water.


C-4401 In-line Cartridge - Used on many manufactures from Apollo Spas, Beachcomber, Conway Spas, Freedom Spas and many more!


hot tub filter with Free Flow Design

With Advanced Free Flow Core for better cleaning


Will work with other manufactures filters including: FL1006, 817-3510, 17-2606 & R173432



  • Outside Diameter: 4 - 15/16" (4 15/16")
  • Length: 4 - 5/8" (4 5/8")
  • Top Opening: 2 - 1/8" (2 1/8")
  • Bottom Opening: 2 - 1/8" (2 1/8")
  • Media Weight - 3 oz.
  • SQ FT Media - 35'
  • Unicel - C-4401 C4401
  • Filbur - FC-2386 FC2386
  • Pleatco - PRB17.5SF


NOTE: Filters should be replaced once every 6 months to ensure max flow through rate.

This unit is brand new and is for the 35 sq ft filter cartridge. Filter housing canister is sold separately.  Two Filters Included


Payment Details

We accept PayPal and Credit card (Visa or Mastercard).  If you are ordering multiple units and part, please call us to see if we can save you shipping cost for multiple item orders.

 No taxes to US residence!


Shiping and Handling

Please allow 4-6 days for shipping via UPS Ground to USA or Canada.  You will be emailed a tracking number to the email address you provide us.  Expedited Shipping services are available!

Your #1 Hot Tub Parts Replacement Store!


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  • Model: C-636
  • Shipping Weight: 1lbs
  • 26 Units in Stock
  • Manufactured by: Guardian