I bought a Moeller, but never got around to installing it ... so I gave it to my buddy for his boat. Moeller & Racor seemed to be the better looking models, and have the clear bottom drainage cups. 10micron filter is the standard.
They are larger than what you might think (or what I thought), so be sure you have a way & place to securely mount them in line with the fuel hose ... without putting much bend in the hose. Otherwise you may have to buy a fuel hose and cut it to length.