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Spa Manufacturers Hot Tub Filters
Spa Manufacturers Filters
These Filters Meet or Exceed Specifications Set Forth By The Spa Manufacturer.

Square Feet
17.5
Outer Diameter
4 15/16"
Length
4 5/8"
Top
2 1/8" Inner DiameterTop example and MAY VARY
Bottom
2 1/8" Inner DiameterTop example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4401
Replacement Cartridge Filters for these Pleatco Products
PRB17.5SF
Replacement Cartridge Filters for these Filbur Products
FC2386
FITS Rainbow DSF 35 [17-2606]

Square Feet
25
Outer Diameter
4 15/16"
Length
6 5/8"
Top
2 1/8" Inner DiameterTop example and MAY VARY
Bottom
2 1/8" Inner DiameterTop example and MAY VARY
Filter Media
4 oz
Replacement Cartridge Filters for these Unicel Products
C-4405
Replacement Cartridge Filters for these Pleatco Products
PRB25SF
Replacement Cartridge Filters for these Filbur Products
FC2387
FITS Rainbow DSF 50 [3005825]

Square Feet
25
Outer Diameter
4 15/16"
Length
13 5/16"
Top
2 1/8" Inner DiameterTop example and MAY VARY
Bottom
2 1/8" Inner DiameterTop example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4326
Replacement Cartridge Filters for these Pleatco Products
PRB25-IN
Replacement Cartridge Filters for these Filbur Products
FC2325
FITS Rainbow Dynamic 25 [17-2327]

Square Feet
25
Outer Diameter
6"
Length
7"
Top
Posi Grip
Top example and MAY VARY
Bottom
1 1/2" MPT
Top example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
6CH-26
Replacement Cartridge Filters for these Pleatco Products
PTL25W-SV
Replacement Cartridge Filters for these Filbur Products
FC0310
FITS American Spas, Artesian (Coleman)

Square Feet
28
Outer Diameter
4 15/16"
Length
14 7/8"
Top
2 1/8" Inner DiameterTop example and MAY VARY
Bottom
2 1/8" Inner DiameterTop example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4301
Replacement Cartridge Filters for these Pleatco Products
PMT27.5
Replacement Cartridge Filters for these Filbur Products
FC1610
FITS Advantage Electric 25 [ELE-25] (Top Load)