Funny you should ask. I just installed four of them in the kitchen and they exactly match the originals. I bought them at Camping World. They are labelled as if from different manufacturers but are so exactly alike that even the mold seam marks are identical on the backsides.
I also installed a matching rheostat to control them, but ordered it from WRV, who forwarded it from the manufacturer. However, there was no identification on who manufactured it.
2003 Alpine 40FDTS (400HP)
Long Beach, CA