Response to We need to change our filter cartridge and its says it is a pentair cc-100, p/n 173200,125 sq ft - so we are not sure what the replacement cartridge number is??? I read some of the questions and answers and I'm more confused. Most of what we see for the cc100 is for 100 sq ft - not the 125 sq ft that is on the cartridge now. Can you please let me know which one is the correct one that we need. I was hoping to get it on the 15% of this weekend - probably won't happen? Thanks, Deb

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