The nozzle worked fine so I can't complain. But as some of the other reviews say I can confirm there was only one washer per tube and in a different material than pictured. Shown are two softer clear rubber discs. What mattered was one washer per bushing made of a harder white rubber (you have to really tighten that type of washer very hard to form a seal). It didn't really matter to me as I have a lot of extra washers from other brewing projects and equipment. I also think that for those with a straighter-walled vessel, such as a plastic bubbler with a large opening, may not be a problem (the area under the graduated gallons is pretty flat!). However, if you have a curved vessel (like a plastic bucket) you may need at least one extra pair of washers and some effort to make the seal.
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