Originally Posted by VinceU
Personal preference of course, but you do get what you pay for. The hose filter (aka Walmart) will stop rocks and sand but that's about it @100 micron. The "factory" unit will filter chemicals and sediment down to 5 microns.
There's a thread on here where supposedly the factory admitted the FR1 filter only went down to 45 microns.
I just replaced mine altogether with a GE 5 micron setup, it flows much better and filters are $12 a two pack.
I'll see if I can find that thread.