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I just don't think the swivel is necessary. The top piece already can go up, down, left, or right, I don't need to twist my hose 360 degrees.(that may be the most unintentionally dirty sentence I've ever written) ANNNYWAYYYYY, if I were Teleflex, I'd just as soon get rid of it. Maybe put a longer hose attachment on it or something. But the swivel is unnecessary.

EJD

Both swivels on my mask eventually developed a small leak.
just wind some black sewing thread into the crack it stops the leaks,the swivels still swivel and it has lasted a long time.