I have the smallest Quad DE 60 and its been a great filter for the most part, but I noticed the larger 2 available units are rated for a higher flow.
It seems to me but Id like to know for sure that I can simply buy a new DE- 120 and replace the cartridges into my plumbed in base and pop the larger top piece on.
Seems that the top piece and filters are where the difference is and that bases are identical.
Goal here is an overall lower operating pressure and longer time between cleanings and recharges.
I would then sell my units as a used (but 1/3rd) new pentair quad DE filter.
Workable? Thanks guys.