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Great Northern Filters
These Filters Meet or Exceed Specifications Set Forth By This Spa Manufacturer.
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Square Feet
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Outer Diameter
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Length
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25
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4 5/8"
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11 7/8"
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Shopping Options
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Top
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Bottom
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Posi Grip
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1 1/2" MPT
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Same as:
Unicel - 4CH-30
Filbur - FC0141
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Item# PTL25H 4A
1 1/2" Thrd MPT Adptr (Pipe Thrds)
Note: Handle Style Will Vary
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Square Feet
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Outer Diameter
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Length
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35
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4 15/16"
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9 1/4"
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Shopping Options
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Top
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Bottom
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2 1/8" Inner Dia
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Same as:
Unicel - C-4335
Filbur - FC2385
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Item# PRB35-IN
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Square Feet
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Outer Diameter
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Length
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50
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4 15/16"
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13 5/16"
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Shopping Options
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Top
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Bottom
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2 1/8" Inner Dia
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Same as:
Unicel - C-4950
Filbur - FC2390
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Item# PRB50-IN
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| Square Feet
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Outer Diameter
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Length
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| 50
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4 3/4"
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14 1/2"
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| Shopping Options
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Top
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Bottom
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| Click Here
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Posi Grip
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1 1/2" MPT
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Same as:
Unicel - 4CH-50
Filbur - FC0151
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Item# PTL50-H 4A
NoteL Handle Style Will Vary
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