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You are here: Home > Hot Tub Filters by Size > 4" Diameter Hot Tub Filters > Filter Range: 4" OD x 12-14" Length
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Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
25 sq. ft. Waterway, Zone, American Commander II  

Replacement for Hot Tub Filter numbers Pleatco # PRB25-IN Unicel # C-4326 Filbur # FC-2375  

OD 4-15/16" Length 13-5/16" Top ID 2-1/8" Bottom ID 2-1/8"
25 sq. ft. Pentair, Niagara Whirlpool, Blue Pacific, Alps, Aries, Warm Spring, Haughs, Hydro Pool  

Replacement for Hot Tub Filter numbers Pleatco # PRB25-IN-4 Unicel # C-4625 Filbur # FC-2370  

OD 4-15/16"
Length 13-5/16"
Top ID 2-1/8"
Bottom ID 2-1/8"
25 sq. ft. Pentair, Rainbow Leaf Trap  

Replacement for Hot Tub Filter numbers Pleatco # PRB25-IN-TC Unicel # C-4321 Filbur # FC-2372  

OD 4-15/16"
Length 13-5/16"
Top ID Closed w/raised ring
Bottom ID 2-1/8"
Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
Replacement Hot Tub Filter
Price: $27.72
Sale Price: $24.95
Save $2.77!

(1)
Replacement Hot Tub Filter
Price: $26.73
Sale Price: $24.95
Save $1.78!

(1)
35 sq. ft. Pentair-Rainbow, Waterway, Rec Warehouse, Morgan, Lifestyle, Maax, Savannah  

Replacement for Hot Tub Filter numbers Pleatco # PRB37-IN-4 Unicel # C-4637 Filbur # FC-2380  

OD 4-15/16"
Length 13-5/16"
Top ID 2-1/8"
Bottom ID 2-1/8"
AK-3049 Hot Tub Filter 50 sq. ft. Pentair-Rainbow, Waterway, Custom Molded,  Jacuzzi Premium, Leisure Bay, Maax  

Replacement for Hot Tub Filter numbers Pleatco # PRB50-IN Unicel # C-4950 Filbur # FC-2390  

OD 4-15/16"
Length 13-5/16"
Top ID 2-1/8"
Bottom ID 2-1/8"
45 sq. ft. Dakota Spas  

Replacement for Hot Tub Filter numbers Pleatco # PDS45 Unicel # C-4311 Filbur # FC-2394  

OD 4-15/16" Length 12-1/4" Top ID 2-1/8" Bottom ID 2-1/8"
Replacement Hot Tub Filter Pleatco PHC50 Pleatco PHC50P4
50 sq. ft. Waterway, Rising Dragon, Dynasty Spas  

Replacement for Hot Tub Filter numbers Pleatco # PWW50L Unicel # 4CH-949 Filbur # FC-0172  

OD 4-15/16"
Length 13-1/2"
Top ID Handle
Bottom ID 2" FEM SAE
DiameterLengthTypeOEMUnicelFilbur
4 5/8"13 1/4"SpaHercules Pool Products
Hercules Products Orange Bottom
DiameterLengthTypeOEMUnicelFilbur
4 5/8"13 1/4"Spa
Hercules Products Orange Bottom, threaded bottom connection