It looks like the current Pentair model FNS PLus 60 sq ft DE filter is similar to my 25 year old American Product filter and multiport. I did see Pentair bought our American Products. Looking to replace current unit with either the Pentair filter and multiport ,or with the # 67140177 filter Jandy 6o sq. ft Versa PLumb and Jandy multiport #67140997 -BWVL-MPV-80 side Mount 2". Both have filter grids that are curved. My current 25 year old filter has a grid with 13 flat panels. My motor is a 1 1/2 hP Pentair. Since I do my own maintenance, are the curved filters easy to remove for cleaning at the end of the season? Also, since my American Products lasted 25 years I like to replace with a quality unit. I did see some old forum discussions on Pentair and Jandy, but like to hear from folks that may have either of these units and what they like or dislike about them. Thanks for any input.