Help Changing to Cartridge Filter

I have an 18’ by 33’ by 54" above ground pool.  I have a Hayward 1 HP pump, a 21" waterway sand filter, and a Jandy Aqua Pure Salt system.

I am looking at replacing the sand filter with a cartridge filter.  I need help sizing the correct Cartridge filter.

Hello JdoeC1 - We would recommend a 100 square foot cartridge filter or higher for an 18’x33’ above ground pool. Something like the Speck ACF 120Hayward Star Clear 120 or the Pentair Clean & Clear 100 would be sufficient.

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