Aftermarket grids for DE filter

[LearningCurve]

I see several places online have aftermarket grids listed for use with my Pentair FNS Plus DE filter. They look considerably cheaper than OEM grids. Has anyone used aftermarket grids with any success? Am I just asking for trouble?

[LearningCurve]

For example. Unicel has a full set of grids that I can order for my filter for around $90 shipped.