Okay boat buddies, let me tell you about this Seaworks flusher I've been using all season. First off - YES it works great for my Mercury 150HP! No issues with flow or connection.

The dual flow design really does give better cleaning power compared to my old single feed flusher. I can actually see more debris coming out when flushing.

BUT... the rubber could be thicker. Like some other reviewers said, water does spill out a bit if you don't get the perfect fit. Not a dealbreaker but noticeable.

Pro tip: Check the fit every few minutes during flushing. Mine vibrated loose once and I didn't notice right away. Still, way better than cheaper options I've tried.

Winterizing was a breeze with the antifreeze hookup. Saved me so much time compared to my old method. Worth the extra $$ in my opinion.

Final verdict? 4/5 stars - does what it promises but could use slightly better materials. Would buy again though!