What i mean is which power heads are current model year? I am trying not to buy pumps that are out of manufacturers warranty or parts lists. I have seen so many different numbers from all kinds of suppliers with prices all over the place.
All the models above are the currently distributed models by Tunze. The nano models have been out for I believe 2.5-3 years depending on model and the full size Stream 2s have been out for about a year. The nanos have had some revisions over the course of time but nothing recent that I am aware of.
Warranty is 2 years from date of purchase with a receipt or without is 2 years from the 3 character date code stamped on the pump.
Roger could tell you more tomorrow if that does not answer your question
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