Pentair Pac Fab Clean & Clear Plus 520 (made after 11/98:  for those made before 11/98 see product Unicel C-7498)
Waterway Crystal Water 525 sq. ft.
Waterway Crystal Water 600 sq. ft.

Specifications
Four 130 sq. ft cartridges required
replaces Pac Fab filter 178585
replaces Waterway filter 817-0131 or 817-0143 (8170131 or 8170143)
replaced Pentair original filter R173578
replaces Unicel C-7472

Manufacturer
PLEATCO

Sq. Ft.
130 sq. ft. x 4 qty. = 520 sq. ft. (fits 520, 525 sq. ft. models)

OD
7"

Length
32"

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