Hi all,
Have 10 year old Pentair 520 cartridge filter. I have replaced cartridges once about 4 years ago. Probably time to replace again. Is there a difference among brands? Pentair vs others?
Thanks in advance.
Andrew
Have 10 year old Pentair 520 cartridge filter. I have replaced cartridges once about 4 years ago. Probably time to replace again. Is there a difference among brands? Pentair vs others?
Thanks in advance.
Andrew