They are Anderson Woodwright 400 series. I was planning to use Marvin Integrity, but the standard sizes were not a good fit compared to the original windows (which I think were Norco). I have always liked Marvin more, and Anderson not so much, but these are pretty nice, and the sizes were within 1/4" of what we had, so on the inside of the house I was able to carefully remove and 100% re-install all the original inside trim. The outside had to be completely re-trimmed, because the old windows had finger jointed wood trim that was a problem. Our siding actual wood clapboards, and it had to get cut back just a little to accommodate the new trim. It came out pretty good though, but I have a whole lot of caulking and paint still left to do...
PS if I had thought about it I could probably have bought the new windows from Mike Dechaine, the pool pro, because he is an Anderson "Revision" salesman these days