Which cartridge to purchase

 I have 160352 pool filter. It is 2 years old and has the original cartridge but I think it is not filtering very good.

Which cartridge will be best Pentair Clean & Clear PAP 15-4 PL037 or Pentair Clean and Clear 200 PL0138 OR

R173217?

I see small things floating on top of pool so I believe I need to replace and want to purchase the most filtering

 

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