Haven't had any luck finding a good bottom for my cracked one. Looking at newer stuff. I see there are the FNS grid types and the "Quad DE Cartridge" types. Prices are fairly close. Is one better than the other? Do grids last longer than the "DE Cartridges"?
Do these 2 types of Pentair filters use the same multiport valve?
Do these 2 types of Pentair filters use the same multiport valve?