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Caldera Spa Filters
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

Square Feet
Outer Diameter
Length
50
7"
10 3/4"
Shopping Options
Top
Bottom
Flex w/ Air Relief
2" Slip
Same as:
Unicel - C-7451
Filbur - FC3084
Spa Filter
Spa Filter
Item# PCD50    OEM # 033016
Top Load Filter
Note: Handle Style Will Vary

Square Feet
Outer Diameter
Length
50
7"
10 3/4"
Shopping Options
Top
Bottom
Flex w/ Air Relief
2 11/16" Inner Dia
Same as:
Unicel - C-7350
Filbur - FC3963
Spa Filter
Spa Filter
Item# PCD50-NEW     OEM # 1019401
Top Load Filter    New Model Style
Note: Handle Style Will Vary

Square Feet
Outer Diameter
Length
75
7"
14 3/4"
Shopping Options
Top
Bottom
Posi Grip
2" Slip Nipple
Same as:
Unicel - C-7479
 Filbur - FC3085
Spa Filter
Spa Filter
Item# PCD75    OEM # 033017
Top Load Filter
Note: Handle Style Will Vary

Square Feet
Outer Diameter
Length
75
7"
14 3/4"
Shopping Options
Top
Bottom
Posi Grip
2 11/16" Inner Dia
Same as:
Unicel - C-7375
 Filbur - FC3964
Spa Filter
Spa Filter
Item# PCD75-NEW    OEM # 1019301
Top Load Filter    Newer Models Style
Note: Handle Style Will Vary

Square Feet
Outer Diameter
Length
100
7"
16 1/2"
Shopping Options
Top
Bottom
Flex w/ Air Relief
2" Slip
Same as:
Unicel - na
 Filbur - na
Spa Filter
Spa Filter
Item# PCD100
Top Load Filter
Note: Handle Style Will Vary

Square Feet
Outer Diameter
Length
100
8"
16 1/2"
Shopping Options
Top
Bottom
Posi Grip
3 5/8" w/ Lip Seal
Same as:
Unicel - C-8399
 Filbur - FC3965
Spa Filter
Spa Filter
Item# PCD100W    OEM # 1039607
Top Load Filter
Note: Handle Style Will Vary

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