After a bit more searching, I found this at Summit Racing for $241.99:
It's Vista-Pro # 433583, 3 row, brass. It has a 1 year warranty but ships free and would also be tax-free which is nice.
Outlet Size: 1 1/2 in.
Core Height (in): 15.625 in.
Core Thickness (in): 2.000 in.
Core Width (in): 24.250 in.
The one in my first post has these size specs:
Core Width (In): 24-3/8 Inch
Core Height (In): 16-7/8 Inch
Core Thickness (In): 1-1/4 Inch
So the dimensions are all different which is my main concern. How do I know either one will fit correctly? Will a .75" extra thickness mean the thing is more likely to hit the fan?