I am having a heck of a time finding an answer. I have a 13,500 gallon
pebble tec freeform pool. I.A 763 surface area of 435square feet. 82 foot
perimeter.
I am going to replace the Jacuzzi cartridge filter with a sand filter(
Hayward, Pentair,sta-rite...other suggestions appreciated), filled with one
of the Zeotype medias.
BUT I cant figure out what SIZE filter to buy..
18/24/30?
Is there somewhere to determine this online? I have been told three
different things by different dealers.

Thanks
Brandon