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Outpost Filter H42513 25 SqFt Waterway FC-2375 PRB25-IN C-4326 AK-3011

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Calculated at Checkout
Now: $29.77
RRP: $36.99


reemay filter fabric media25 SqFt. replacement spa filter cartridge H42513 for 25 sqft Waterway filter assemblies. 

This is a popular replacement filter cartridge that replaces PRB25-IN,PRB25 as well as FC-2375 and C-4326.
Outpost Filter cartridges are manufactured with Reemay filter media.  High quality, great price.

Filter Specs and Dimensions:

  • 13 5/16" Long
  • 4 15/16" Wide (outer diameter)
  • Top - 2 1/8" opening - center hole
  • Bottom 2 1/8" opening - center hole
  • 25 Sq Ft Filter
  • 3 oz. Reemay Filter fabric
  • Pleat Count: 106
  • ABS center core with NSF certified materials for extra strength
  • Strong filter bands for filter integrity and safety
  • Reinforced End Caps
  • Great Price!
  • Replaces Filbur FC-2375 and Pleatco PRB25-IN, Unicel C-4326,25392-000-100,8R4425 and AK-3011
  • Filter type used in many popular spa brands including Emerald Spas and Great Lakes hot tubs.

H42513 lenght of prb25 filter replacement
13 5/16 inches long

H42513 diameter of filter
Almost 5 inches in diameter

H42513 spa filter
Center hole through filter core



Replaces filters Waterway, Rainbow, Baker Hydro, Premier, Pac Fab Filters. Filter type used in QCA Spas, roto spas and other brand hot tubs.

Spa filter type used in Accent Spas, Maax Spas (Canada), Apollo Spas, Aqua Mystic, Beachcomber, Blue Falls MFG LTD (Canada), Coast Mountain Spas (Canada), Coleman Spas, Custom Molded Spas, Dakota Spas, Emerald Spas, GPM Industries, Honey Tubs, Hot Spot Spas, Hot Springs Spas, Moonwater Spas, Nordic Hot Tubs, Orca Bay Spas, PDC Spas, Pentair Pool Products, Rainbow Plastics, QCA, Rec Warehouse, River Valley Spas, Rubadub Tub, Safari Spas, Signature Spas, Spa Manufacturers Inc, Streamline Spas, Sun Ray Spas (Canada), Thermo Spas, US Spas, Viking Spas, Waters Edge Spas, Waterway Plastics, Zone Spas, 17-2327, 100586, 33521, 25392, 303909, M-4326, 817-2500, R173429, Unicel C-4326, Filbur FC-2375, and Pleatco PRB25-IN. Also replaces Beachcomber spa filter 3005845.

This filter cartridge type also found in Beachcomber Spas,Cal Spas, Alps Spas, Aries Spas, Blue Pacific, Esther Williams, Haughs, Heldor Spas, Hydro Pool Industries, JEM Spas, Rainbow Plastics, Sequoia Designs, Warm Springs Spa and others. Replaces: 17-2325, Unicel C-4625, Filbur FC-2370, PRB25-IN.

For the money-saving 4-pack, see H42513-4PK


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