I bought this canister to replace my taller one - was tired of it not being able to fit easily under my counter top.  It is great and there are no issues with it fitting my older model Vita Mix.  However, I echo what other reviews have written - how I wish that Vita Mix offered a GLASS canister!  I would gladly pay extra for it.  I've had this one for almost a month now and despite thoroughly cleaning it after each use, it has already taken on that dirty appearance that plastic does - such a bummer.