Pentair R173578 fits the following filter models:
-Pentair Pac Fab Clean & Clear Plus 520 (made after 11/98: for those made before 11/98 see product Unicel C-7498)
NOTE: Four R173578 filter cartridges are required for the model above, both top and bottom filter ends are open with 3 inch inside diameter
Pentair R173578 replaces the following filter cartridges:
Pac Fab pool filter 178585
125 sq. ft. x 4 qty. = 500 sq. ft. (fits 520, 525 sq. ft. models)
Searching for other Clean and Clear Plus 520 (CCP520) pool filter products?
Searching for other Pentair pool filter products?