yeah im talking about the rectangular ones, i belive i got it when they first came out, actually before they were released to the public, promo thing. ive had it for quite some time! at least 5 years and ive had the round ones(304) and i hate them, the 404 is fine with me, i use clear tubing on mine if that makes a difference, the ones ive seen around have cheap grey plastic tube and i belive it pops off easy, mine has never leaked.