If they're the ones I got originally, those Meade filters are pretty limited. The R, G and B filters don't have IR block, so you'd have to use the L in series with the colour filter - not very desirable.
If you want some cheap but still quite high quality LRGBs, go with the ZWO ones. I used these for quite a while (before upgrading to Astronomiks) and still use them for planetary imaging.
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