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PDC Spa Filters
These Filters Meet or Exceed Specifications Set Forth By This Spa Manufacturer.
 
Square Feet
Outer Diameter
Length
7
5"
4 5/8"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - na
Filbur - na
Spa Filter
Spa Filter
Item# PRB7 BNDS (w/ Bands)
Top Load Filter

Square Feet
Outer Diameter
Length
10
4 1/4"
4"
Shopping Options
Top
Bottom
2 1/16" Inner Dia
2 1/16" Inner Dia
Same as:
Unicel - C-4310
Filbur - FC3077
Spa Filter Spa Filter
Item# PWW10
 Skim Filter

Square Feet
Outer Diameter
Length
25
4 15/16"
13 5/16"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4326
Filbur - FC2325
Spa Filter
Spa Filter
Item# PRB25-IN    Model # 817-2500
In-Line Filter

Square Feet
Outer Diameter
Length
35
4 15/16"
9 1/4"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4335
Filbur - FC2385
Spa Filter
Spa Filter
Item# PRB35-IN

Square Feet
Outer Diameter
Length
17.5
4 15/16"
4 5/8"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4401
Filbur - FC2386
Spa Filter
Spa Filter
Item# PRB17.5SF PR    Model # 817-3510
Skim Filter    2 Required = 35sf

Square Feet
Outer Diameter
Length
25
7"
9 3/16"
Shopping Options
Top
Bottom
3" Inner Dia w/ Mld Gskt
3" Inner Dia w/ Mld Gskt
Same as:
Unicel - C-7626
Filbur - FC1230
Spa Filter
Spa Filter
Item# PA25-4    OEM C-250RE
Pressurized

Square Feet Outer Diameter Length
50 7" 19 5/8"
Shopping Options Top Bottom
Click Here
3" Inner Dia w/ Mld Gskt
3" Inner Dia w/ Mld Gskt
Same as:
Unicel - C-4310
Filbur- FC3077
Spa Filter Spa Filter
Item# PA50    OEM# 500RE
Pressurized

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