25 sq. ft. (also replaces C-4312 & C-4327)
If you want to use less chemicals and never have to clean your hot tub filter, you can use the PuraSPA PF-1188, 1 Micron Filter.
C-4325 replaces: Filbur FC-0640 UPC 64554400640, FC-1220 UPC 64554401220. Pleatco PA225-4 UPC 090164225005. Aladdin 12511, 12501. OEM CX225RE, 57010500. Unicel UPC 678285140157.
Commonly used in: Apollo Spas, Emerald Spas, Hayward Pool Products, Pentair Pool Products - American Products Replacements Commander II, Sonoma Spas and others.