Danner magdrive model 5 any good?

[Malakai]

500gph for only 50$, shipped. should i go 4 it? inline, ill need to put barbs on, but is danner any good? if it is, ill give a link. looks to be a good deal
-Malakai

 

[Tecumseh]

I personally think you might be better off with the model
4 or even the model 3. Danner is a good make. I just
don't see a need for the model 5's extra capacity.