Decided to build my own. I looked at the olthoff screen, and it says easy to install but it looks like the dimensions are about the size of the radiator, so the only "easy" way to install it is to remove the radiator, and then if you wanted to clean it, it would be, well, not - so - easy. Any ways, I decided to make mine out of brass flat bar and SS square mesh. I made it in 2 rectangles so they can be inserted one by one and then fastened. I'm wrestling with how to secure them to the front of the radiator. I can see like a toggle type latch that gets turned 90 degrees to hold it to the radiator frame. The miter cut the brass and then used something called SSF-6 to braze it with a simple MAPP Gas torch. The results were pretty good, and the fit seems secure. I cut the mesh and used binder clips to fasten it and then used RTV high temp sealant to create the border that holds the mesh. Here's a photo.. I thought a cool look might be to create an X of flat bar into the dimensions of the assembled rectangles, but then, i figured, it's a lot more work and might restrict some wind flow.
