Coated Circular Polarizer

Coated Circular Polarizer
that makes the lens filter pipe (circular polarizers)?

I've heard they do for pit … to be a very reputable brand. in which case the Prices are very aggressive. i am looking to get a Circular Polarizing Filter multi-coated for my EF 18-200-s.

That would be correct and why is' aggressive (?) "It's because they are almost as good as B & W, Singh-Ray and some of the German glass. They're still good though ..