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

Square Feet
7
Outer Diameter
5"
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
Replacement Cartridge Filters for these Pleatco Products
PRB7
Replacement Cartridge Filters for these Filbur Products
FITS Pump Side Circulation Filter

Square Feet
10
Outer Diameter
4 1/4"
Length
4"
Top
2 1/16" Inner DiameterTop example and MAY VARY
Bottom
2 1/16" Inner DiameterTop example and MAY VARY
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4310
Replacement Cartridge Filters for these Pleatco Products
PWW10
Replacement Cartridge Filters for these Filbur Products
FC3077
FITS Waterway Skim Filter 10 [817-0010]

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
35
Outer Diameter
4 15/16"
Length
9 1/4"
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-4335
Replacement Cartridge Filters for these Pleatco Products
PRB35-IN
Replacement Cartridge Filters for these Filbur Products
FC2385
FITS Rainbow Dynamic 35 [03FIL1300]

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
7"
Length
9 3/16"
Top
3" Inner Diameter w/ Molded GasketSpa Filter
Bottom
3" Inner Diameter w/ Molded GasketSpa Filter
Filter Media
4 oz
Replacement Cartridge Filters for these Unicel Products
C-7626
Replacement Cartridge Filters for these Pleatco Products
PA25-4
Replacement Cartridge Filters for these Filbur Products
FC1230
FITS Star Clear CX-250 [CX250RE]

Square Feet
50
Outer Diameter
7"
Length
19 5/8"
Top
3" Inner Diameter w/ Molded GasketTop example and MAY VARY
Bottom
3" Inner Diameter w/ Molded GasketSpa Filter
Filter Media
3 oz
Replacement Cartridge Filters for these Unicel Products
C-4310
Replacement Cartridge Filters for these Pleatco Products
PA50
Replacement Cartridge Filters for these Filbur Products
FC3077
FITS Waterway Skim Filter 10 [817-0010]