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These Filters Meet or Exceed Specifications Set Forth By This Spa Manufacturer.
 
Square Feet
Outer Diameter
Length
50
4 15/16"
13 5/16"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4950
Filbur - FC2390
Spa Filter
Spa Filter
Item# PRB50-IN    OEM 17-2380

Square Feet
Outer Diameter
Length
50
4 15/16"
14 7/8"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4305
 Filbur - FC1630
Spa Filter
Spa Filter
Item# PMT50    Model# CL-2810

Square Feet
Outer Diameter
Length
75
5"
23 5/8"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4970
Filbur - FC2930
Spa Filter
Spa Filter
Item# PCAL75    Model # Waterway 75

Square Feet
Outer Diameter
Length
75
5 5/16"
14 13/16"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-5374
Filbur - FC2971
Spa Filter
Spa Filter
Item# PLBS75    Model # 817-750

Square Feet
Outer Diameter
Length
100
4 15/16"
23 5/8"
Shopping Options
Top
Bottom
2 1/8" Inner Dia
2 1/8" Inner Dia
Same as:
Unicel - C-4995
 Filbur - FC2940
Spa Filter
Spa Filter
Item# PCAL100    Model # 81-1000

Square Feet
Outer Diameter
Length
50
7"
19 5/8"
Shopping Options
Top
Bottom
3" Inner Dia w/ Mld Gskt
3" Inner Dia w/ Mld Gskt
Same as:
Unicel - C-7656
Filbur - FC1240
Spa Filter
Spa Filter
Item# PA50

Square Feet
Outer Diameter
Length
75
7"
29 1/8"
Shopping Options
Top
Bottom
3" Inner Dia
3" Inner Dia
Same as:
Unicel - C-7677
 Filbur - FC2590
Spa Filter
Spa Filter
Item# PPC75

Square Feet
Outer Diameter
Length
80
8 1/2"
17 3/8"
Shopping Options
Top
Bottom
4 1/16" ID w/ Mld Gsk
4 1/16" ID w/ Mld Gskt
Same as:
Unicel - C-8600
 Filbur - FC1280
Spa Filter
Spa Filter
Item# PA80

Square Feet
Outer Diameter
Length
100
8 1/2"
23 5/16"
Shopping Options
Top
Bottom
4 1/16" ID w/ Mld Gsk
4 1/16" ID w/ Mld Gsk
Same as:
Unicel - C-8610
 Filbur - FC1290
Spa Filter
Spa Filter
Item# PA100

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