Which UV filter (Nikon or Rocketfish) for lens should I keep? - 1

Recently I have bought NIKKOR 35mm 1.8 DX lens for my Nikon D5100 DSLR. I had previously had Nikon 52mm UV lens filter and now I got Rocketfish 52mm UV lens filter with lens by default. Now I'm confused which one to keep and one of my friend wanted to buy from me so. Please advise should I keep both one sell one of it. But which one os good as I'm not that much photogranoic that i can distinguish difference… As I want to put one in my lens… Please suggest…

I never heard of Rocketfish before, so i guess it's a rather new brand. A quick google search revealed that they are available at Best Buy.

I'd keep the Nikon filter without a second thought.

Anything by such an odd name as Rocketfish must be instantly suspect, unless it has had seriiously good reviews in a good photo magazine. Anyway Nikon is always good and reliable so stick to Nikon.