I can't afford to pay attention! ;-)
The original KW1 filter is rated for 2.5 gpm where the new one is double that amount. Can't figure out why double the GPMs is a bad thing. We are not talking about more pressure on the lines/fittings, we are talking better flow through the filter and IMO better on the pump. I could be wrong, but that how I looked at it. We could definitely afford the expensive original filter, but it felt like it was a monopoly on FRs part with their own particular FR1 and KW1 model numbers. I also didn't like how the cup fits on the assembly. I didn't have any issues if I really cranked on it, but other folks have had the filter pop off for not knowing when it was fully seated. It looks like FR fixed it later by adding a mark. Happy Happy Happy.
2014 Georgetown 351DS
-TruCenter -Front/Rear CHF -Hellwig Links -Tiger Trak -Ran McNally GPS -ScanGauge -Truck Systems TPMS -5 Star Tune