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Onyx Spa Filters
These Filters Meet or Exceed Specifications Set Forth By This Spa Manufacturer.
 
Square Feet
Outer Diameter
Length
25
4 15/16"
4 9/16"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4308
Filbur - FC6305
Spa Filter
Spa Filter
Item# POX25-IN
In-Line Filter

Square Feet
Outer Diameter
Length
50
6 1/16"
12 1/16"
Shopping Options
Top
Bottom
1 15/16" Inner Dia
1 15/16" Inner Dia
Same as:
Unicel - C-6405
Filbur - FC3063
Spa Filter
Spa Filter
Item# POX50
Pressurized

Square Feet
Outer Diameter
Length
50
5"
14 11/16"
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# POX50-IN
In-Line Filter

Square Feet
Outer Diameter
Length
75
6 1/16"
17 3/4"
Shopping Options
Top
Bottom
1 15/16" Inner Dia
1 15/16" Inner Dia
Same as:
Unicel - C-6407
 Filbur - FC3064
Spa Filter
Spa Filter
Item# POX75
Pressurized

Square Feet
Outer Diameter
Length
100
7 3/16"
21 13/16"
Shopping Options
Top
Bottom
2 7/8" Inner Dia w/ Step
2 7/8" Inner Dia w/ Step
Same as:
Unicel - C-7302
Filbur - FC6320
Spa Filter
Spa Filter
Item# POX100

Square Feet Outer Diameter Length
135 7 1/2" 28 15/16"
Shopping Options Top Bottom
Click Here 2 15/16" Inner Dia 2 15/16" Inner Dia
Same as:
Unicel - C-7413
Filbur - FC1637
Spa Filter Spa Filter
Item# POX135

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