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You are here: Home > Hot Tub Filters by Size > 7" Diameter Hot Tub Filters
Choose a Sub-Category
Filter Range: 7" OD x 4-6" Length Filter Range: 7" OD x 6-8" Length Filter Range: 7" OD x 8-10" Length
Filter Range: 7" OD x 10-12" Length Filter Range: 7" OD x 12-14" Length Filter Range: 7" OD x 14-16" Length
Filter Range: 7" OD x 16-18" Length Filter Range: 7" OD x 18-20" Length Filter Range: 7" OD x 20-22" Length
Filter Range: 7" OD x 22-24" Length Filter Range: 7" OD x 24-26" Length Filter Range: 7" OD x 26-28" Length
Filter Range: 7" OD x 28-30" Length Filter Range: 7" OD x 30-32" Length Filter Range: 7" OD x 32-34" Length
Filter Range: 7" OD x 34-36" Length Filter Range: 7" OD x 36-38" Length Filter Range: 7" OD x 38-40" Length
Hot Tub Filters by Size
From the above sub-category list select the outer estimated diameter of your filter.
You can browse the filters listed or to drill down further by selecting the length grouping your filter falls within.
Compare your filters end-caps and select the correct replacement hot tub or spa filter.

Not sure how to measure your filter?
Watch the below Pleatco engineer's How to Measure a Hot Tub Filter Video guide.

Have a hot tub or spa filter part number?
Use the above search field if you know the Pleatco, Unicel, Filbur, Master Spa or Baleen number.

Find Hot Tub Filter by Spa Manufacture.
One other way to find your filter is to select the Hot Tub Filters category where we list filters by manufacturer.

All About Spas Replacement Hot Tub and Spa Filter Help.
You can always call us at 888.915.9919 for expert help to find the right filter so you can relax.


How to Measure a Filter Cartridge

Quick tutorial on How to Identify your filter cartridge by measuring or by product number.
These two methods can help you to easily find a replacement filter cartridge for your hot tub or spa regardless of manufacturer.
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Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
Replacement Hot Tub Filter
Price: $26.00
Sale Price: $24.95
Save $1.05!
13 sq. ft. Baker-Hydro Hydro-Mite  

Replacement for Hot Tub Filter numbers Pleatco # PBH12.5-4 Unicel # C-7603 Filbur # FC-0705  

OD 7" Length 5" Top ID Handle Bottom ID Molded Cone Adapter
20 sq. ft. Doughboy Skim-Line  

Replacement for Hot Tub Filter numbers Pleatco # PD20SL-4 Unicel # C-7401 Filbur # FC-4005  

OD 7" Length 6-1/2" Top ID Handle Bottom ID 1-1/2"
25 sq. ft. Waterco Trimline C-25  

Replacement for Hot Tub Filter numbers Pleatco # PWC25 Unicel # C-7427 Filbur # FC-5125  

OD 7-1/4" Length 9-7/8" Top ID 3-1/16" w/step Bottom ID 3-1/16" w/step
Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
25 sq. ft. Top Load  

Replacement for Hot Tub Filter numbers Pleatco # N/A Unicel # C-7624 Filbur # FC-3086  

OD 7" Length 9-13/16" Top ID Handle Bottom ID 2-1/16"
25 sq. ft. Sta-Rite RCP25 TX25, Pentair  

Replacement for Hot Tub Filter numbers Pleatco # N/A Unicel # C-7625 Filbur # FC-0610  

OD 7"
Length 9-13/16"
Top ID 3"
Bottom ID 3"
30 sq. ft. Master Spas Micro Filter 2002-2005  

Replacement for Hot Tub Filter numbers Pleatco # PMA30-2002-R Unicel # C-7330 Filbur # FC-1003  

OD 7" Length 7-1/4" Top ID 4-1/8" Bottom ID 4-1/8"
Replacement Hot Tub Filter Pleatco PBF25M Replacement Hot Tub Filter
Pleatco PBF25-M 25 sqft Hot Tub Filter
Price: $35.82
Sale Price: $31.90
Save $3.92!
25 sq. ft. Pentair Purex CF-25  

Replacement for Hot Tub Filter numbers Pleatco # PPF25 Unicel # C-7610 Filbur # FC-2110  

OD 7"
Length 11-1/8"
Top ID 2-15/16" /s
Bottom ID 2-15/16"
Pleatco 25 sqft Hot Tub Filter

Bullfrog 25

OD - 7"
Lenght - 5 7/8"
Top - Handle
Bottom - Modified ACME
No Filter Core

Advanced Microbial
32 sq. ft. Soft.sider Spas, Pleatco Skim Filter  

Replacement for Hot Tub Filter numbers Pleatco # N/A Unicel # C-7432 Filbur # FC-0483  

OD 7" Length 8" Top ID Handle Bottom ID 1-9/10"
Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
32 sq. ft. Coleman, Maax Spas, Sunrise Spas, Waters Edge  

Replacement for Hot Tub Filter numbers Pleatco # PCS32P Unicel # 7CH-32  Filbur # FC-0425  

OD 7" Length 8" Top ID Handle Bottom ID 1-1/2" MPT
25 sq. ft. Hayward Star-Clear C250  

Replacement for Hot Tub Filter numbers Pleatco # PA25-4 Unicel # C-7626 Filbur # FC-1230  

OD 7" Length 9-13/16" Top ID 3" Bottom ID 3"
30 sq. ft. Skim Filter  

Replacement for Hot Tub Filter numbers Pleatco # PTL30XW-4 Unicel # C-7630 Filbur # FC-3080  

OD 7" Length 11-3/4" Top ID Handle Bottom ID 3"
Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
33 sq. ft. Pentair Purex CF-33/100  

Replacement for Hot Tub Filter numbers Pleatco # PPF33 Unicel # C-7433 Filbur # FC-2115  

OD 7"
Length 14"
Top ID 2-15/16"
Bottom ID 2-15/16"
25 sq. ft. Baker-Hydro Hydro-Mite  

Replacement for Hot Tub Filter numbers Pleatco # PBH25-4 Unicel # C-7604 Filbur # FC-0710  

OD 7" Length 9-13/16" Top ID Handle Bottom ID Molded Cone Adapter
35 sq. ft. Pentair American Products  

Replacement for Hot Tub Filter numbers Pleatco # PCM35-4 Unicel # C-7435 Filbur # FC-0660  

OD 7"
Length 9-13/16"
Top ID 3"
Bottom ID 3"
Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
40 sq. ft. Hayward Easy Clear C400  

Replacement for Hot Tub Filter numbers Pleatco # PA40-4 Unicel # C-7442 Filbur # FC-1228  

OD 7" Length 14-3/16" Top ID 3" Bottom ID 3"
25 sq. ft. Pentair American Products, Hayward  

Replacement for Hot Tub Filter numbers Pleatco # PCM25 Unicel # C-7425 Filbur # FC-0615  

OD 7"
Length 9-13/16"
Top ID 3"
Bottom ID 3"
40 sq. ft. Jacuzzi CE, Atlantic Pool, Cantar, Competition Pool  

Replacement for Hot Tub Filter numbers Pleatco # PJB40 Unicel # C-7304 Filbur # FC-1450  

OD 7" Length 13-11/16" Top ID 3" /w step Bottom ID 3" w/step
Replacement Hot Tub Filter Replacement Hot Tub Filter Replacement Hot Tub Filter
33 sq. ft. Top Load  

Replacement for Hot Tub Filter numbers Pleatco # N/A Unicel # C-7632 Filbur # FC-3087  

OD 7" Length 14" Top ID 2-1/16" Bottom ID 2-1/16"
40 sq. ft. Lifestyle, Maax, DM Industries, Vita, California Cooperage  

Replacement for Hot Tub Filter numbers Pleatco # PVT40P Unicel # 7CH-40 Filbur # FC-0435  

OD 7" Length 9-3/4" Top ID Handle Bottom ID 1-1/2" MPT
40 sq. ft. Coleman Spas, Tiara Spas   Replacement for Hot Tub Filter numbers Pleatco # PCS40-F2M Unicel # 7CH-402 Filbur # FC-0430  OD 7" Length 9-3/4" Top ID Handle Bottom ID 2" MPT