Pentair EF-1500 Series Style:Refill Total Clearance (so you can

Total Clearance (so you can change the cartridge): 15"

And there we go

The baby of the Everpure EF series

As far as actually changing it

and also standard 42 for taste/smell/other aesthetic impurities

Pentair EF-1500 Series Style:Refill Total Clearance (so you canThe baby of the Everpure EF series, this wee tiny itty bitty teensy weensy thing filters 1500 gallons before it starts bawling for a change. That said, it also filters down to 0. 5 microns, which is half the size of your typical bacteria. Which is why the NSF certified it under standard 53 to reduce cysts such as Cryptosporidium and Giardia by mechanical means. Oh, and also standard 42 for taste smell other aesthetic impurities. Oh, and its also a