Rocha 0 Posted February 20, 2013 I am on my fourth housing now: Ikelite N90 (had it for 2 years), Ikelite F100 (2 years), Sea&Sea F100 (3 years), Subal D2x (10 years). I have never removed any o'ring and always left back of the housing closed, no port though. No floods (knock on wood!). Share this post Link to post Share on other sites
